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Pseudomorphs & Replacements J to M

Posted by Rock Currier  
avatar Pseudomorphs & Replacements J to M
November 21, 2010 10:47AM
Click here to view Pseudomorphs & Replacements A & B. Click here to view Pseudomorphs & Replacements C. Click here to view Pseudomorphs & Replacements D to I. Click here to view Pseudomorphs & Replacements N to P. Click here to view Pseudomorphs & Replacements Quartz. Click here to view Pseudomorphs & Replacements R to Z. Click here to view Best Minerals P, click here to view and here for Best Minerals A to Z and here for Fast Navigation of completed Best Minerals articles.


Can you help make this a better article? What good localities have we missed? Can you supply pictures of better specimens than those we show here? Can you give us more and better information about the specimens from these localities? Can you supply better geological or historical information on these localities?





Jamesonite after Fizélyite
Romania
Maramures Co., Baia Mare (Nagybánya), Chiuzbaia (Kisbánya), Herja Mine

Jamesonite after Fizélyite FOV 2cm wide© Peter Haas



Juangodoyite after Chalconatronite
Chile
Tarapacá Region, Iquique Province, Santa Rosa-Huantajaya District, Santa Rosa Mine

Juangodoyite @ Chalconatronite FOV 2mm© Brent Thorne



Kaolinite after Helvite
Russia
Eastern-Siberian Region, Saha Republic (Sakha Republic; Yakutia), Vilyui River Basin (Vilui River Basin; Wilui River Basin)

Kaolinite after Helvite 2.3cm© 2001 John H. Betts
Kaolinite after Helvite 2.3cm© 2001 John H. Betts


Kaolinite after Leucite
Brazil
Minas Gerais, Poços de Caldas plateau, Caldas, Osamu Utsumi mine (Campo do Cercado)

Kaolinite after Leucite ~2.5cm wide© Martins da Pedra
Kaolinite after Leucite~2.5cm© Martins da Pedra


Kaolinite after Leucite
Brazil
Minas Gerais, Poços de Caldas plateau, Poços de Caldas

Kaolinite after Leucite ~4cm wide©
Kaolinite after Leucite 6.2cm© DSW 2011


Kaolinite after Leucite
Italy
Campania, Naples Province, Somma-Vesuvius Complex, Monte Somma, Sant'Anastasia, Fosso Cancherone

Kaolinite after Leucite 4.2cm© Rob Lavinsky



Kaolinite after Orthoclase
UIK
St Agnes District, St Agnes, Wheal Coates

Kaolinite after Orthoclase, both ~2.8cm©



Kaolinite after Orthoclase
UK
England, Cornwall, St Austell District, St Dennis, Slip China Stone Quarry

Kaolinite after Orthoclase ~6cm wide©



Kaolinite & Sericite after Feldspar
UK
England, Cornwall, St Austell District, St Stephen-in-Brannel, Melbur, Melbur China Clay Pit

Kaolinite & Sericite @ Feldspar 4.8cm© McAvoy
Kaolinite & Sericite @ Feldspar size ?© J.Ralph


Kaolinite & Sericite after Feldspar
UK
England, Cornwall, St Austell District, Treverbyn, Bugle, North Goonbarrow China Clay Pit

Kaolinite & Sericite after Feldspar 5cm? wide© J.Ralph



Kettnerite after bismuth mineral
Germany
Baden-Württemberg, Black Forest, Wolfach, Oberwolfach, Rankach valley, Clara Mine

Kettnerite @ bismuth mineral FOV 1cm© Stephan Wolfsried


K Feldspar after Marialite
Australia
Queensland, Mount Isa - Cloncurry area, Selwyn District, Mount Elliott Mine

K Feldspar @ Marialite 4.6cm wide© JSS



Kidwellite after ?
USA
Georgia, Burke Co., Girard District, Girard

Kidwellite after ?, FOV 5mm© JBS 2007



Kolwezite after Barite
Democratic Republic of Congo (Zaïre)
Katanga Copper Crescent, Katanga (Shaba), Western area, Kolwezi

Kolwezite after Barite 3.7cm tall© John Sobolewski



Kutnohorite after Calcite
USA
Colorado, San Juan Co., Silverton District, Howardsville, Sunnyside Mine (American Tunnel; Mogul Mine; Washington Mine; Belle Creole; Gold Prince; Brenneman Mine; Sunnyside Mine Group)

Kutnohorite after Calcite 7.5cm wide© Rob Lavinsky



Kyanite after Andalusite
Russia
Northern Region, Murmanskaja Oblast', Kola Peninsula, Keivy Mountains, Pestsovye Keivy, Semiostrov'e

Kyanite after Andalusite 4.5cm wide© ØT



Lazurite after Afghanite on Calcite
Afghanistan
Badakhshan Province (Badakshan Province; Badahsan Province), Koksha Valley (Kokscha Valley; Kokcha Valley), Sar-e-Sang District

Lazurite @ Afghanite ~6cm tall on Calcite © Aymeric


The alteration of the Afghanite by Lazurite is only skin deep on this specimen.


Lazurite after Phlogopite
Afghanistan
Badakhshan Province (Badakshan Province; Badahsan Province), Koksha Valley (Kokscha Valley; Kokcha Valley), Sar-e-Sang District

Lazurite after Phlogopite 2.1cm wide© H. Obodda



Lead replacint plant roots
USA
Arizona, Santa Cruz Co., Tubac

Lead replacint plant roots FOV 3.5mm© Michael Cline



Leadhillite after Cerussite
USA
Arizona, Pinal Co., Mammoth District, Tiger, St. Anthony deposit, Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine)

Leadhillite after Cerussite 5.8cm wide© Rob Lavinsky


Examples of this pseudomorph from Tiger are rare.


leonhardite after Laumontite
Canada
Nova Scotia, Annapolis Co., Margaretville

Leonhardite after Laumontite 6cm wide© 2010, JGW


Leonhardite is not longer considered a mineral. It is now considered a synonym of Laumontite which is not very correct either. Leonhardite was the mineral you got when Laumontite lost its water. It might be more properly be describes as a variety of Laumontite.



Leonite after Picromerite on Halite
Germany
Hesse, North Hesse, Werra Valley, Heringen, Wintershall Potash Works

Leonite @ Picromerite on Halite 5.5cm© Rob Lavinsky
Leonite @ Picromerite 9.7cm© Rob Lavinsky

If you have any Leonite pseudomorphs after Picromerite on Halite or as loose crystals, you should take very good care of them because they are not very stable in most normal collection environments. Put them in a cool dry place that is not subject to fluctuations in humidity or temperature. Otherwise you may end up with a pile of little white crystal fragments.

Leonite after Picromerite
Germany
Thuringia, Roßleben, Potash Mine

Leonite after Picromerite FOV 5cm© Elmar Lackner
Leonite after Picromerite 5.7cm wide© Rob Lavinsky


Leonite after Picromerite 13cm tall© johns schulz



Leonite after Picromerite & Halite
Ukraine
Ivano-Frankivs'k Oblast' (Ivanovo-Frankovsk Oblast'), Kalusa Salt deposit (Kalusz)

Leonite after Picromerite & Halite ~10cm©
Leonite after Picromerite & Halite 6.5cm©


Lepidolite after Elbaite
Brazil
Minas Gerais, Jequitinhonha valley, Itinga

Lepidolite after Elbaite 6cm long© 2009, JGW

Leucoxene is not a mineral, but rather a an alteration product and mixture of Fe-Ti oxides, including titanite, perovskite, titanian magnetite, but especially ilmenite. Most 'leucoxene' is anatase or rutile.


lepidolite @ Tourmaline in Quartz
Brazil
Minas Gerais, Jequitinhonha valley, Araçuaí (Arassuaí)

lepidolite @ Tourmaline in Quartz 4cm© Marin Mineral



lepidolite after Tourmaline
Brazil
Minas Gerais, Jequitinhonha valley, Itinga, Teixerinha mine

lepidolite after Tourmaline 4.1cm tall© Rob Lavinsky



lepidolite after Tourmaline
Brazil
Minas Gerais, Jequitinhonha valley, Itinga

lepidolite @ Tourmaline 3cm tall© Russell G. Rizzo
lepidolite after Tourmaline 6.1cm tall© DSW 2011


lepidolite @ Tourmaline 7cm© Russell G. Rizzo
lepidolite after Tourmaline 3.9cm tall© Russell G. Rizzo


lepidolite after Tourmaline
USA
California, San Diego Co., Pala District, Pala, Chief Mountain, Elizabeth R. Mine (Hazel W. claim)

lepidolite after Tourmaline 4cm wide© Rob Lavinsky


Leucoxene is not a mineral but a mixture of minerals. It is an alteration product and mixture of Fe-Ti oxides, including titanite, perovskite, titanian magnetite, but especially ilmenite. Most 'leucoxene' is anatase or rutile.

leucoxene after Anatase
France
Centre, Gien, Loiret, Loire River alluvials

Leucoxene after Anatase 0.35mm© François Périnet



leucoxene after Ilmenite
France
Centre, Gien, Loiret, Loire River alluvials

leucoxene after Ilmenite 0.3mm© François Périnet



leucoxene after Magnetite
Germany
Baden-Württemberg, Odenwald, Eberbach, Katzenbuckel Mt., Michelsberg Quarry

leucoxene after Magnetite 3mm wide© Volker Betz




Limonite is the name is currently used for unidentified massive hydroxides and oxides of iron, with no visible crystals, and a yellow-brown streak. 'Limonite' is most commonly the mineral species goethite, but can also consist of varying proportions of maghemite, hematite, lepidocrocite, hisingerite, pitticite, jarosite group species, etc. Although the images below appear to be crystals, they are only the pseudomorphs (false forms) of minerals that have been replaced by various fine grained iron minerals that are often not easy to characterize exactly and the name limonite is commonly used to describe them. The reason that we do not capitalize the L in limonite below is because it is not an IMA approved mineral name. We use it here because it has a long track record as a useful name and one that is currently commonly used. There are a few other mineral mixtures that are pseudomorphs that we treat in a similar fashion in this article for want of a better term to describe them. It may be that limonite pseudomorphs are the most common of all pseudomorphs and you can see from the very many of them below that they are indeed abundant. Sometimes these are called Goethite pseudomorphs, but I would bet a good steak dinner that most of those are in reality limonite pseudomorphs as well.

limonite after Clinozoisite
USA
California, Riverside Co., Crestmore, Crestmore

limonite after Clinozoisite 3.5mm wide© 2008, JGW



limonite after Cuprite with Azurite & Malachite
Greece
Attikí (Attica; Attika) Prefecture, Lavrion (Laurion; Laurium) District, Lavrion District Mines, Sounion Area, Agia Varvara Mines (St Barbara Mines), Sounion Mine No. 06 ("Exi" Mine)

limonite after Cuprite with Azurite & Malachite FOV 8mm©



limonite after Legrandite
Mexico
Durango, Mun. de Mapimí, Mapimí, Ojuela Mine

limonite after Legrandite ~6cm wide©



limonite after Marcasite
Italy
Marche, Ancona Province, Fabriano, Pecorile
limonite after Marcasite 1.5cm tall©



limonite after Marcasite
USA
Missouri, Jasper Co., Tri-State District, Joplin Field

limonite after Marcasite 10cm tall© Charles Creekmur



limonite after Marcasite
USA
Missouri, Jefferson Co., Southwest Jefferson County barite and lead District

limonite after Marcasite 4cm wide© Charles Calkins



limonite after Marcasite
USA
Wisconsin, Colombia Co.

limonite after Marcasite 4.9cm tall© Weinrich


Limonite pseudomorphs after pyrite are quite common and only a few of the more prominent localities are listed here. The alteration of the pyrite can range from just skin deep to complete. Hematite and goethite are the most common alteration products, the iron mineral maghemite (Fe3+2O3) is also common. Maghemite unlike hematite and goethite is strongly magnetic and it does not take much of it to make the pseudomorphs weakly to strongly magnetic. What causes the formation of maghemite in some pseudomorphs is not known exactly, but several mechanism and conditions have been suggested. Here is a comment by one of our members Ben Grguric that I found interesting.

"In the inland of Australia limonitic pisoliths on the surface of the ground are often magnetic while those underneath are not or much less so. The phenomenon has been ascribed to grass or brush fires converting some of the Fe-hydroxides to maghemite (Anand and Gilkes 1987). One geochemical exploration technique is so-call mag-lag sampling in which a magnet is dragged along the surface to collect these magnetic gravel, which are then chemically analysed."
[Ben Grguric 2013]


limonite after Pyrite (devels dice)
Australia
Queensland, Mt Isa - Cloncurry area, Mount Isa district, May Downs Station, Slaughteryard Creek

limonite after Pyrite ~2.5cm wide© Ryan Eagle



limonite after Pyrite
Australia
South Australia, Flinders Ranges, North Flinders Ranges, Arkaroola area

limonite after Pyrite 3.8cm wide© JSS
limonite after Pyrite 4.3cm wide© JSS


limonite after Pyrite
Australia
South Australia, Flinders Ranges, North Flinders Ranges, Chambers Gorge (Mount Chambers Gorge)

limonite after Pyrite FOV 4cm© Judy Rowe



limonite after Pyrite
Australia
South Australia, Olary Province, Olary

limonite after Pyrite 4cm wide© Greg Murray



limonite after Pyrite
Austria
Styria, Fischbacher Alpen Mts, Rettenegg, Blasenkogel Mt. (Blasenberg Mt.)

1.2cm limonite @ Pyrite with Quartz© ReMi



limonite after Pyrite & Quartz
Austria
Styria, Fischbacher Alpen Mts, Mürzzuschlag, Langenwang, Pretulgraben, Amundsenhöhe Mt.

A 1cm limonite cube @Pyrite in Quartz© Alfred Passath



limonite after Pyrite
Brazil
Minas Gerais, Doce valley, Divino das Laranjeiras

limonite after Pyrite 8cm wide© Geraldo Alvim



limonite after Pyrite
Brazil
Minas Gerais, Montes Claros

limonite after Pyrite 3.5cm wide© WWB



limonite after Pyrite
Brazil
São Paulo, Santana do Parnaíba

limonite after Pyrite 3cm wide© Brhounds



limonite after Pyrite
Democratic Republic of Congo (Zaire)
Katanga (Shaba), Katanga Copper Crescent, Western area, Katonto hill

limonite after Pyrite 9.7cm wide© Paul De Bondt



limonite after Pyrite
Germany
North Rhine-Westphalia, Arnsberg, Sauerland, Holzen, Calcite quarry

limonite after Pyrite 5.5cm wide© G. van der Veldt



limonite after Pyrite
Italy
Piedmont, Torino Province, Sesia-Lanzo zone, Lanzo Valley, Viù Valley, Usseglio, Margone

limonite after Pyrite 5.5cm wide©



limonite after Pyrite
Japan
Honshu Island, Chubu Region, Nagano Prefecture, Chisagata-gun, Takeshi

limonite after Pyrite 8mm wide© SMS 2007



limonite after Pyrite
Pakistan
Federally Administered Tribal Areas (FATA), Khyber Agency, Mulla Ghori, Zagi Mountain (Zegi Mountain)

limonite after Pyrite 6cm tall© H. Obodda



limonite after Pyrite
Portugal
Évora District, Vila Viçosa

limonite after Pyrite ~6cm wide© Rui Nunes 2009



limonite after Pyrite
Portugal
Évora District, Vila Viçosa, Pardais, Miguel Vacas Mine

limonite after Pyrite 3cm wide© vasco trancoso



limonite after Pyrite
Portugal
Setúbal District, Sesimbra, Zambujal

limonite after Pyrite 3.5cm wide© Rui Nunes 2007
limonite after Pyrite 6.5cm wide© Rui Nunes 2007


limonite after Pyrite
Romania
Arad Co., Sebis (Borossebes)

limonite after Pyrite 5cm wide© Joseph A. Freilich



limonite after Pyrite
South Africa
Northern Cape Province, Kalahari manganese fields, Hotazel, Hotazel mine

limonite after Pyrite 9.9cm wide© hmessing



limonite after Pyrite
Spain
Andalusia, Málaga, Benalmádena

limonite after Pyrite 3.5cm wide©



limonite after Pyrite
Spain
Andalusia, Málaga, Carratraca

limonite after Pyrite 7.5cm wide© Rui Nunes 2010



limonite after Pyrite
Spain
Andalusia, Málaga, Carratraca, Plains of Arenalejos

limonite after Pyrite 6cm wide©
limonite after Pyrite 7cm wide©


limonite after Pyrite 6cm wide©



limonite after Pyrite
Spain
Andalusia, Málaga, Ronda Massif

limonite after Pyrite 12cm tall© Rob Lavinsky



limonite after Pyrite
Spain
Castile and Leon, León, Puebla de Lillo, Respina Mine

]limonite after Pyrite 2.3cm wide© J.A.CENDON
limonite after Pyrite on Dolomite 6cm© Martins da Pedra


limonite after Pyrite
Spain
Catalonia, Barcelona, Barcelonès, Barcelona, Montjuïc

limonite after Pyrite 2.3cm wide© Carles Millan
limonite after Pyrite 2cm wide© CCURTO2009


limonite after Pyrite
[[b]b]Switzerland[/b][/b]
Wallis (Valais), Brig, Naters, Natischer Berg Mt. (Nessel Alp)

limonite after Pyrite 4.3cm© Christian Bracke



limonite after Pyrite & Albite
USA
California, San Diego Co., Pala District, Pala, Chief Mountain, Elizabeth R. Mine (Hazel W. claim)

limonite after Pyrite & Albite 6.4cm wide© 2003 SLR



limonite after Pyrite
USA
California, Siskiyou Co., Happy Camp

limonite after Pyrite 3.5cm tall©



limonite after Pyrite
USA
Nevada, Elko Co., Silverzone Pass, Radar Hill

limonite after Pyrite 2cm wide© Darlymple



limonite after Pyrite
USA
North Carolina, Cabarrus Co., Concord

limonite after Pyrite 2.6cm tall© Rob Lavinsky



limonite after Pyrite
USA
North Carolina, Stanly Co., Aquadale

limonite after Pyrite 3cm wide© 2001 John H. Betts
limonite after Pyrite 2.5cm© Martins da Pedra


limonite after Pyrite© Curtis Breuer



limonite after Pyrite
USA
Pennyslvania, Chester Co. East Whiteland Township, Valley Store, Mill Lane Farms (Great Valley Corporate Center)

limonite after Pyrite, largest=2.3cm© M.Heintzelman



limonite after Pyrite
USA
Pennsylvania, Lancaster Co., Manheim Township, Fruitville, Fruitville Pike Limonite occurrence

limonite after Pyrite, largest=3.5cm© M.Heintzelman
limonite after Pyrite 2.5cm© Jay Vonderhey


limonite @ Pyrite 2.7cm tall© Rob Lavinsky
limonite after Pyrite 3.29cm© Jasun McAvoy


limonite after Pyrite
USA
Pennsylvania, York Co., Leader Heights (near Jacobus), Interstate 83 Roadcut

limonite after Pyrite 2.7cm© J. Nemitz



limonite after Pyrite
USA
Utah, Utah Co., Pelican Point Area

limonite after Pyrite 5cm tall© Weinrich
limonite after Pyrite 10.7cm wide© Weinrich


limonite after Pyrite 6.7cm tall© Rob Lavinsky
limonite after Pyrite 6.2cm wide© Steve Hardinger
.
limonite after Pyrite 7.5cm wide© A&M


limonite after Pyrite 4cm wide
limonite after Pyrite 4.1cm wide© Weinrich


limonite after Pyrite 7.2cm© Rob Lavinsky
limonite after Pyrite 6.2cm wide© Steve Hardinger

Probably the best limonite pseudomorphs after pyrite are those from Pelican Point. They are rarely rivaled for their sharpness and their size is often remarkable.


limonite after Pyrite
USA
Virginia, Albemarle Co., State Highway 6 roadcut

limonite after Pyrite, largest=2cm© Mike Dennis



limonite after Siderite
Argentina
Catamarca, Belen Department, Papachacra

limonite after Siderite 5cm tall© Weinrich



limonite after Siderite
Austria
Salzburg, Hohe Tauern Mts, Rauris valley, Hüttwinkl valley, Grieswies - Krumlkeeskopf Mt. area, Grieswies-Schwarzkopf Mt. (Grieswies-Schwarzkogel Mt.)

limonite after Siderite 5.8cm wide©



limonite after Siderite
Austria
Tyrol, North Tyrol, Ziller valley

limonite after Siderite 8cm wide© Fernando Metelli



limonite after Siderite & Quartz
Austria
Tyrol, North Tyrol, Ziller valley, Zemmgrund, Mörchner area, Saurüssel

limonite after Siderite & Quartz 9.5cm wide©



limonite after Siderite
Bolivia
Cochabamba Department, Ayopaya Province, Kami Mine

limonite after Siderite 12.7cm wide© Rob Lavinsky



limonite after Siderite
Brazil
Minas Gerais, Jequitinhonha valley, Diamantina

limonite after Siderite ~7xm wide©



limonite after Siderite
Germany
North Rhine-Westphalia, Sauerland, Arnsberg

limonite after Siderite 6.2cm wide© 2008 Michael C. Roarke



limonite after Siderite
Morocco
Atlas Mts.

limonite after Siderite 7cm wide© Antonio Borrelli



limonite after Siderite
Namibia
Khomas Region, Gamsberg

limonite after Siderite with Rutile 5.2cm wide© Rob Lavinsky



Lindbergite after ?
Italy
Liguria, Genova Province, Ne, Graveglia Valley, Molinello Mine

Lindbergite after ? FOV 4mm© Elmar Lackner



Litharge after Tetragonal Pb oxide hydrate?
UK
England, Derbyshire, Ashover, Milltown, Milltown Quarry

1mm Litharge @ a Pb oxide?© Steve Rust
Litharge @Tetragonal Pb oxide? FOV 2mm?© Steve Rust


Lizardite afer Olivine
Norway
Buskerud, Modum, Snarum

Lizardite afer Olivine ~5cm tall©



Lizardite after Forsterite
Norway
Buskerud, Modum, Snarum, Dypingdal Serpentine-magnesite deposit

Lizardite after Forsterite xl=15cm© Knut Eldjarn
Lizardite after Forsterite 7.5cm © ØT


Luzonite after Enargite
Taiwan
Taiwan Province, Taipei Co., Jui-Fang Town, Chinkuahshih Mine

Luzonite after Enargite 5.2cm wide© Rob Lavinsky


Magnetite after Chrysotile
Canada
Estrie, Les Sources RCM, Asbestos, Jeffrey mine (Jeffrey quarry; Johns-Manville mine)

Magnetite after Chrysotile 9cm wide© Jasun McAvoy



Magnetite after Pyrite
Mexico
Sonora, Demantoid Hill

Magnetite after Pyrite 6.5cm wide© 2002 John H. Betts



Magnetite after Pyrite
USA
Arkansas, Hot Spring Co., Magnet Cove

Magnetite after Pyrite 1cm wide©



Malachite after Atacamite
Australia
South Australia, Andamooka Ranges - Lake Torrens area, Stuart Shelf area, Mt Gunson, Mount Gunson Mine

Malachite after Atacamite 4.8cm wide© Rob Lavinsky



Malachite after Azurite
Australia
South Australia, Flinders Ranges, North Flinders Ranges, Yudnamutana district, Sir Dominick Mine (Sir Dominic Mine; Sir Domonic Mine)

Malachite after Azurite 4cm wide© JSS
Malachite after Azurite 2.7cm wide© John Sobolewski


Malachite after Azurite 3.1cm wide© John Sobolewski
Malachite after Azurite 3.0cm wide© Danny Jones


Malachite after Azurite3.8cm wide© fabreminerals.com
Malachite after Azurite 1.6cm© Danny Jones


Malachite after Azurite
Brazil
Bahia, Seabra

Malachite after Azurite 10.2cm tall© Rob Lavinsky
Malachite @ Azurite 8.5cm tall© Weinrich


Malachite after Azurite 14cm wide© 2000 John H. Betts
Malachite after Azurite 3.5cm© Brhounds


Malachite after Azurite 4cm wide© John Sobolewski



Malachite after Azurite
Chile
Atacama Region, Chañaral Province, Inca de Oro, San Pedro de Cachiyuyo District, Manto Cuba Mine

Malachite after Azurite 6.1cm tall



Malachite after Azurite
Chile
Atacama Region, Copiapó Province, Cabeza de Vaca district, Remolinos mine

Malachite after Azurite 5.4cm wide© Rob Lavinsky



Malachite after Azurite
Democratic Republic of Congo (Zaïre)
Katanga (Shaba), Katanga Copper Crescent, Western area, Kolwezi

Malachite after Azurite 3.2cm wide© 2001 John H. Betts



Malachite after Azurite
Democratic Republic of Congo (Zaïre)
Katanga (Shaba), Katanga Copper Crescent, Kolwezi, Mashamba West Mine

Malachite after Azurite 9.2cm wide© Paul De Bondt



Malachite after Azurite
France
Rhône-Alpes, Rhône, Chessy-les-Mines

Malachite after Azurite ~6cm wide©
Malachite after Azurite 6.8cm wide© Rob Lavinsky


Malachite after Azurite
Kazakhstan
Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Dzhezkazgan (Zhezqazghan), Dzhezkazgan Mine (Zhezqazghan Mine)

Malachite after Azurite 5.8cm wide© fabreminerals.com



Malachite after Azurite
Mexico
Sonora, Mun. de Cananea, Cuitaca, Milpillas Mine

Malachite after Azurite 15cm wide© Rob Lavinsky
Malachite after Azurite 4.8cm wide© John Sobolewski


Malachite after Azurite and Azurite 3.5cm wide©
Malachite @ Azurite with Plancheite 5.3cm© Rob Lavinsky


Azurite after Malachite 5.5cm tall© Weinrich
Malachite after Azurite 7.7cm wide© A&M
.
Malachite @ Azurite w Plancheite 5.2cm wide© Fabre


Malachite @ Azurite w Plancheite 4.3cm© fabre
Malachite @ Azurite w Quartz 5.5cm© fabre


Malachite @ Azurite w Plancheite 4.2cm© fabre


These specimens are relatively new on the market and the mine has produced many fine examples of Malachite pseudomorphs after Azurite though those produced so far do not rival the best from Bisbee, Arizona or Tsumeb, Namibia.


Malachite after Azurite
Mexico
Zacatecas, Mun. de Concepción del Oro

Malachite after Azurite ~11cm wide©



Malachite after Azurite
Mexio
Zacatecas, Mun. de Concepción del Oro, Aranzazú

Malachite after Azurite ~8cm tall©



Malachite after Azurite on Calcite
Mexico
Zacatecas, Mun. de Concepción del Oro, El Cobre, Cobre Mine

Malachite @ Azurite on Calcite 2.5cm© Weinrich
Malachite @ Azurite on Calcite 9.5cm© Rob Lavinsky



Malachite after Azurite & Azurite
Morocco
Meknès-Tafilalet Region, Khénifra Province, Kerrouchene

Malachite after Azurite & Azurite 4.4cm© fabreminerals.com
Malachite after Azurite & Azurite 6cm tall© Fabre


Malachite after Azurite 5cm wide© Carlos Pareja
Malachite after Azurite & Azurite 4.2cm wide© Fabre


Malachite after Azurite
Morocco
Meknès-Tafilalet Region, Khénifra Province, Tadamout

Malachite after Azurite 5.5cm wide© Rob Lavinsky



Malachite after Azurite
Morocco
Oriental Region, Oujda-Angad Province, Touissit District

Malachite after Azurite 5.5cm wide© fabreminerals.com



Malachite after Azurite
Morocco
Oriental Region, Oujda-Angad Province, Touissit District, Touissit

Malachite @ Azurite 3cm© Rob Lavinsky
Malachite after Azurite 6.3cm wide© Rob Lavinsky


Malachite @ Azurite 6.4cm tall© Dan & Diana Weinrich Minerals
Malachite @ Azurite 3.9cm tall© fabreminerals.com


Malachite after Azurite
Namibia
Khomas Region, Windhoek District, Seeis, Ogonja (Onganja)

Malachite after Azurite 6cm wide© Edwards Minerals
Malachite @ Azurite 2.8cm© Rob Lavinsky


Malachite after Azurite
Namibia
Otjikoto (Oshikoto) Region, Tsumeb

Malachite after Azurite 3.5cm wide© Carles Millan



Malachite after Azurite
Namibia
Otjikoto (Oshikoto) Region, Tsumeb, Tsumeb Mine (Tsumcorp Mine)

Malachite after Azurite ~14cm©
Malachite after Azurite ~11cm©


Malachite after Azurite 7.5cm tall© Rob Lavinsky
Malachite after Azurite 12.5cm tall© Dan Weinrich


Malachite @ Azurite 5.5cm wide© fabreminerals.com
Malachite after Azurite 3.5cm tall© 2002 John H. Betts


Malachite after Azurite 4cm wide© Kristalle and Crys
Malachite after Azurite 4.8cm wide© Lavinsky


Malachite after Azurite on Cerussite ~7cm wide©
Malachite after Azurite 7.5cm© Weinrich

As you can probably deduce from the many fine examples of Malachite after Azurite above, that Tsumeb is probably considered as having produced the best specimens of this type of pseudomorph, though Bisbee loyalists can also point to some amazing examples from Bisbee, Arizona.


Malachite after Azurite? coated by Rosasite
USA
Arizona, Cochise Co., Dragoon Mts, Turquoise District (Courtland-Gleeson District), Gleeson, Costello Mine group (Costello claims), Silver Bill Mine

Malachite @ Azurite? & 4.4cm© Danny Jones
Malachite @ Azurite? & Rosasite 5.3cm© Michael Cline


Malachite @ Azurite? & 4.8cm© Rob Lavinsky



Malachite after Azurite
USA
Arizona, Cochise Co., Mule Mts, Warren District, Bisbee

Malachite @ Azurite 3cm© 2001 John H. Betts
Malachite after Azurite 6.3cm wide© Rob Lavinsky


Malachite after Azurite
USA
Arizona, Cochise Co., Mule Mts, Warren District, Bisbee, Campbell Mine (Campbell shaft)

Malachite after Azurite ~15cm wide© J.Ralph


Malachite @ Azurite 5.9cm© Lavinsky


The fine Malachite pseudomorphs after Azurite from Bisbee are considered to be great classics and every collector would put one in his collection if they could afford it. There are not many great ones.


Malachite after Azurite
USA
Arizona, Cochise Co., Mule Mts, Warren District, Bisbee, Queen Hill, Copper Queen Mine (Halero Mine)

Malachite after Azurite 3.4cm tall© Cindy Hasler



Malachite after Azurite
USA
Arizona, Gila Co., Globe-Miami District, Miami-Inspiration District, Miami, Oxhide Mine (Lower Ox Hide Mine; Upper Ox Hide Mine; Schultze Mine; Schultze group)

Malachite after Azurite 2.6cm tall© Danny Jones



Malachite after Azurite
USA
Arizona, Pima Co., Ajo District, Little Ajo Mts, Ajo, New Cornelia Mine (Ajo Mine)

Malachite @ Azurite 2.4cm tall© 2008 Michael C. Roarke
Malachite after Azurite 3.3cm tall© Weinrich


Malachite after Azurite ~9cm wide©
Malachite after Azurite ~7cm wide©


Malachite after Azurite
USA
Arizona, Pinal Co., Mammoth District, Tiger, St. Anthony deposit, Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine)

Malachite after Azurite ~6cm tall©


Tiger produced some quantity of Malachite pseudomorphs after Azurite, but the fine ones are few and far between.


Malachite after Barite
Democratic Republic of Congo (Zaïre)
Katanga (Shaba), Katanga Copper Crescent, Central area, Kambove, Shangulowé Mine

Malachite after Barite 5cm wide© fabreminerals.com



Malachite after Barite
Democratic Republic of Congo (Zaïre)
Katanga (Shaba), Katanga Copper Crescent, Western area, Kolwezi, Mashamba West Mine

Malachite after Barite 5.2cm wide© JSS
Malachite after Barite 4cm wide© John Sobolewski


Malachite after Barite ~3cm wide© J. Wingard



Malachite after Copper
Namibia
Otjikoto (Oshikoto) Region, Tsumeb

Malachite after Copper 9.6cm tall© Rob Lavinsky
back side of left© Rob Lavinsky


Malachite after Cuprite on Azurite
France
Rhône-Alpes, Rhône, Chessy-les-Mines

Malachite after Cuprite on Azurite ~4cm wide©
Malachite after Cuprite on Azurite ~2cm wide©


Malachite after Cuprite, largest=1.2cm© DR
Malachite after Cuprite on Azurite ~6cm wide©


Malachite @ Cuprite on Azurite 3cm wide© CLAUDE.jm
Malachite after Cuprite 2.1cm© Rob Lavinsky


Malachite @ Cuprite on Azurite ~4cm wide©
These were mostly produced during the 1800s when the mines at Chessy were most active. Thousands of them were produced and though they are not nob abundant, every collector that wants one can get one. They are classics.


Malachite after Cuprite
Greece
Attikí (Attica; Attika) Prefecture, Lavrion (Laurion; Laurium) District, Lavrion District Mines, Sounion Area, Agia Varvara Mines (St Barbara Mines), Sounion Mine No. 06 ("Exi" Mine)

Malachite after Cuprite FOV 1.2cm wide©



Malachite after Cuprite
Hungary
Borsod-Abaúj-Zemplén Co., Rudabányai Mts., Rudabánya, Andrássy I. Mine

Malachite after Cuprite 4.3cm© Rob Lavinsky



Malachite after Cuprite
Namibia
Otjikoto (Oshikoto) Region, Tsumeb, Tsumeb Mine (Tsumcorp Mine)

Malachite after Cuprite ~9cm wide©


Only a hand full of these specimens were produced. Originally they were cuprite and have been mostly altered to malachite. If you look at the bottom of these specimens you can still see traces of cuprite. Then tiny quartz crystals covered the Malachite and in the sun light they sparkle like mad. The best one, to my knowledge is located in the Smithsonian institute.
[Rock Currier 2011]


Malachite after Galena
UK
Wales, Powys (Radnorshire), Rhayader, Nant-y-Car Mine

5mm Malachite after Galena© Steve Rust



Malachite after Gypsum
USA
Arizona, Pinal Co., Dripping Spring Mts, Mineral Creek District (Ray District), Scott Mountain area, Ray Mine

Malachite after Gypsum 8.5cm wide© Rob Lavinsky



Malachite after Gypsum
USA
Utah, Juab Co., East Tintic Mts, Tintic District, Mammoth Mine (Mammoth shaft)

Malachite after Gypsum ~6cm tall©



Malachite after Gypsum
USA
Utah, Washington Co., Beaver Dam Mts, St. George Apex Mine

Malachite after Gypsum ~4.5cm tall© WWB


At one point about 50 years ago when the Apex mine was operating some quantity of these specimens were produced, probably sever hundred. Today they are hardly ever seen, but some specimens of intergrown "sticks" more than 20 cm were collected and sold to collectors. One even appeared on the cover of Rocks and Minerals magazine.
[Rock Currier 2011]


Malachite after Linarite
USA
New Mexico, Socorro Co., Hansonburg District, Bingham, Blanchard Mine (Portalas-Blanchard Mine), Sunshine no. 4 Adit

Malachite after Linarite ~4cm wide© 2008 Peter Cristofono



Malachite after Tetrahedrite
Spain
Asturias, Parres, S. Cosme de Llerandi, El Coriellu mine (Llerandi mine)

Malachite after Tetrahedrite max. xl. size=15mm © JRGL



Manganite after Pyrolusite & Barite
Germany
Thuringia, Harz Mts, Nordhausen, Ilfeld

Manganite after Pyrolusite & Barite 8cm tall© Lavinsky



Marcasite after Pyrrhotite & Fluorite
France
Provence-Alpes-Côte d'Azur, Var, Tanneron, Fontsante Mine

Marcasite after Pyrrhotite with Fluorite 3.5cm wide© Alain TUEL



Marcasite after Pyrrhotite & Quartz
Germany
Lower Saxony, Harz Mts, St Andreasberg District, St Andreasberg

Marcasite after Pyrrhotite with Quartz ~4cm wide©



Marcasite after Pyrrhotite
Romania
Maramures Co., Baia Mare (Nagybánya), Chiuzbaia (Kisbánya), Herja Mine

Marcasite after Pyrrhotite ~8cm wide©



Marcasite after Pyrrhotite
Russia
Far-Eastern Region, Primorskiy Kray, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche)

Marcasite after Pyrrhotite 13.3cm wide© Joseph A. Freilich LLC



Marshite after Cuprite
Russia
Western-Siberian Region, Altaiskii Krai, Rudnyi Altai, Rubtsovskoe Cu-Zn-Pb deposit

Marshite after Cuprite© J.Ralph



Meta-Autinite after Autunite
France
Burgundy, Saône-et-Loire, Montcenis, Saint-Symphorien-de-Marmagne

Meta-Autinite after Autunite 11cm wide© Pavel M. Kartashov



Metavivianite after Vivianite
Ukraine
Crimea Oblast', Crimea peninsula, Kerch peninsula (Kertch peninsula), Kerchenskyi (Fe)-ore basin, Kerchenskoe deposit

Metavivianite @ Vivianite on Barite 5.5cm© Kartashov
Metavivianite @ Vivianite 6cm© Pavel M. Kartashov


Meyerhofferite after Inyoite
Argentina
Salta, Sijes, Monte Azul deposit

Meyerhofferite after Inyoite 8.5cm wide© Rob Lavinsky
Meyerhofferite @ Inyoite 9.5cm wide© Rob Lavinsky


Meyerhofferite after Inyoite 17.7cm wide© Rob Lavinsky


Here are pictures crystals of Inyoite altering to little prismatic crystals of Meyerhofferite. In some cases the alteration is further along than others. These specimens are stable, at least in terms of not altering further in our lifetimes. These specimens were found recently, in the last ten years and their estimated stability is based on observations made on similar pseudomorphs found in Death Valley California that have been stable over the last 40 years. Certainly the Inyoite specimens from this locality are by far the finest in the world.


Meyerhofferite after Inyoite
USA
California, Inyo Co., Death Valley National Park, Furnace Creek District (Furnace Creek Borate District), Black Mts, Mount Blanco, Mount Blanco Mine (Mount Blanco deposit; Mount Blanco adit)

Meyerhofferite after Inyoite ~13cm tall©
Meyerhofferite after Inyoite ~6cm wide©


Meyerhofferite after Inyoite ~7cm wide©
Meyerhofferite after Inyoite !12cm wide©

There is/was a tiny little mine/prospect in the Mt Blanco area just of 20 mule team canyon that produced the best examples of these pseudomorphs. The tunnel only went in 50 feet or so, but in one of the little drifts off the main tunnel, a small area produces at least two outstanding pockets of these specimens. Some few hundred specimens of this material were produced. Some of the specimens still showed vestiges or the original Inyoite. The material from the bottom of the pocket tended to be coated with little micro prismatic crystals of Meyerhofferite which made them more sparkling than those from the top which tended to be be chalky white, but sharper than the crystals from the bottom of the pocket. More than 40 years out of the ground in the polluted air of Los Angles, indicates that these specimens are stable and show no signs of falling apart.
[Rock Currier 2011]


Miargyrite after Pyargyrite on Quartz
Peru
Lima Department, Oyon Province, Uchucchacua Mine

Miargyrite @Pyargyrite on Quartz 5.2cm tall© Weinrich



Mica after Beryl
Mozambique
Zambezia Province, Alto Ligonha District, Piteia Pegmatite

Mica after Beryl 5cm tall© Martins da Pedra
Mica after Beryl 6cm tall© Martins da Pedra


Mica after Cordierite
Japan
Honshu Island, Kinki Region, Kyoto Prefecture, Kameoka City

Mica group after Cordierite ~7mm each© 2008, JGW
Mica group after Cordierite ~5mm each©


1.2cm Mica group after Cordierite©
1.8cm Mica group after Cordierite©


Mica group after Cordierite ~5mm each©
6mm Mica group after Cordierite© 2008, JGW




Mica after Orthoclase
Bolivia
Potosí Department, Rafael Bustillo Province (Bustillos Province), Llallagua

Mica after Orthoclase with Pyrite ~5cm tall©



Mica after Tourmaline
USA
California, San Diego Co., Pala District, Pala, Chief Mountain, Elizabeth R. Mine (Hazel W. claim)

Mica after Tourmaline© Rob Lavinsky



Mimetite after Cerussite
USA
California, Inyo Co., Death Valley National Park, Panamint Mts (Panamint Range)

Mimetite after Cerussite with Wulfenite 1.5cm wide© C. Stefano '11



Mimetite after Cerussite
Namibia
Otjikoto (Oshikoto) Region, Tsumeb, Tsumeb Mine (Tsumcorp Mine)

Mimetite after Cerussite 8cm wide© Rob Lavinsky



Mimetite & Goethite after Gypsum
Mexico
Chihuahua, Mun. de Aquiles Serdán, Santa Eulalia District

Mimetite & Goethite @ Gypsum 6.5cm tall© Rob Lavinsky



Mimetite after Wulfenite
Mexico
Sonora, Mun. de Bacanora, La Trinidad, San Francisco Mine

Mimetite after Wulfenite 4cm tall© Mike Hopkins



Minimum after Cerussite
Australia
New South Wales, Yancowinna Co., Broken Hill

Minimum after Cerussite 5.4cm wide© Jasun McAvoy
Minimum after Cerussite close up© Jasun McAvoy


Mitridatite after Strengite
Sweden
Lappland, Kiruna district, Svappavaara, Leveäniemi Mine

2mm Mitridatite ball after Strengite © Martins da Pedra



Monazite-(Ce) after ?
Canada
Québec, Montérégie, Rouville RCM, Mont Saint-Hilaire, Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry)

Monazite-(Ce) after ? FOV 3.4mm wide



Monazite-(Ce) after a hexagonal mineral
Germany
Saxony, Oberlausitz, Kamenz, Oßling Quarry

Monazite-(Ce) after a hexagonal mineral FOV 5mm© Thomas Witzke



Monazite & Rhabdophane after Vitusite-(Ce) spray on matrix
Greenland
Kitaa (West Greenland) Province, Narsaq, Ilimaussaq complex

Monazite & Rhabdophane after Vitusite-(Ce) 5cm tall© Arliguie M



Montmorillonite after Natrolite
USA
Rhode Island, Kent Co., West Warwick, Natick, Prospect Hill

Montmorillonite after Natrolite FOV 7.5mm© 2005 - MMI



Montmorillonite after Spodumene
California
San Diego Co., Pala District, Pala, Hiriart Mountain (Hariat Mtn; Harriot Mtn; Heriart Mtn; Heriot Mtn; Hiriat Hill), White Queen Mine (Queen mine; White Queen prospect)

Montmorillonite after Spodumene 3.1cm© Jasun McAvoy



Montmorillonite after wood
Germany
Hesse, Vogelsberg, Herbstein, Schrimpf basalt works

Montmorillonite after wood 18cm wide© Hampel
SEM photo of left© Wolfgang Hampel


SEM photo of above© Wolfgang Hampel



Mottramite after Calcite
Namibia
Otjikoto (Oshikoto) Region, Tsumeb

Mottramite after Calcite 3cm wide© Rob Lavinsky



Mottramite after Copper
Namibia
Otjikoto (Oshikoto) Region, Tsumeb

Mottramite after Copper 3.1cm tall© Rob Lavinsky



Mottramite after Wulfenite
USA
New Mexico, Doña Ana Co., Organ District, Stevenson-Bennett Mine (Stephenson-Bennett Mine)

Mottramite after Wulfenite 5cm wide© JSS



Muscovite after Corundum
France
Aquitaine, Pyrénées-Atlantiques, Aramits, Col d'Urdach

Muscovite after Corundum 13cm© Jean-Eric Rose



Muscovite after Cordierite
France
Auvergne, Puy-de-Dôme

Muscovite after Cordierite ~3cm wide©



Muscovite after plagioclase
Canada
Yukon Territory, Whitehorse Mining District

Muscovite after plagioclase 7.1cm tall© Weinrich
Close up of left© Weinrich


Muscovite after plagioclase 17.4cm wide© Weinrich



Muscovite after Topaz
USA
Montana, Jefferson Co., Boulder Batholith

Muscovite after Topaz 7cm tall© Wm. C. van Laer



Muscovite after Topaz
Brazil
Minas Gerais, Doce valley, Conselheiro Pena, Ferruginha, Sapo mine

Muscovite after tourmaline 606cm tall© Michael Shaw



Muscovite after Tourmaline
USA
Arizona, Pinal Co., Santa Catalina Mts, Oracle District (Control District; Old Hat District; Santa Catalina District), Oracle, Willow Spring Ranch (Willow Springs Ranch)

Muscovite after tourmaline 2.9cm tall© 2001 John H. Betts
Muscovite @ tourmaline 1.9cm© 2001 John H. Betts


Muscovite after Tourmaline
USA
Connecticut, Middlesex Co., East Hampton, Nathan Hall Quarry (Clark Hill quarries)

Muscovite after tourmaline 5cm tall© Harold Moritz



Muscovite after Tourmaline
Maine
Androscoggin Co., Auburn, East Mount Apatite District, Maine Feldspar Quarry

Muscovite after Tourmaline 17cm tall©



Muscovite after Tourmaline
USA
Maine, Androscoggin Co., Auburn, Mt. Apatite District, Greenlaw Quarry

Muscovite @ Tourmaline 25cm wide© C.Trebilcock 2010



Muscovite after Tourmaline
USA
Maine, Oxford Co., Greenwood, Noyes Mountain Quarry (Harvard Quarry)

Muscovite after tourmaline 2.5cm© 2001 John H. Betts



Muscovite after Tourmaline
USA
New Hampshire, Grafton Co., Rumney, Atwood Mine (Burley Mine; General Electric Mine; Pasture Mine; West Rumney Mine)

Muscovite after Tourmaline ~7cm© 2007 Peter Cristofono



Muscovite after Illite?
USA
New York, Jefferson Co., Wilna Township, Natural Bridge, Natural Bridge gieseckite locality

Muscovite after Illite? 7.2cm wide© Ron Gyllenhammer
Muscovite after Illite? close up© Ron Gyllenhammer


Muscovite after Illite? 7.2cm wide© Ron Gyllenhammer



Mushistonite after Kesterite
China
Sichuan Province, Mianyang Prefecture, Pingwu Co., Mt Xuebaoding, Huya village, Huya (Xuebaoding) W-Sn-Be deposit

Mushistonite after Kesterite FOV 8mm© Elmar Lackner





Click here to view Pseudomorphs & Replacements A & B. Click here to view Pseudomorphs & Replacements C. Click here to view Pseudomorphs & Replacements D to I. Click here to view Pseudomorphs & Replacements N to P. Click here to view Pseudomorphs & Replacements Quartz. Click here to view Pseudomorphs & Replacements R to Z. Click here to view Best Minerals P, click here to view and here for Best Minerals A to Z and here for Fast Navigation of completed Best Minerals articles.


Images last selected December 2010 sorting on "after".

Rock Currier
Crystals not pistols.



Edited 74 time(s). Last edit at 12/26/2013 09:22AM by Rock Currier.
avatar Re: Pseudomorphs J to P
December 29, 2010 04:00PM
de    
Another one for you: proustite after silver:

[www.mindat.org]
avatar Re: Pseudomorphs J to P
December 30, 2010 12:01AM
Peter, Interesting specimen. I think we can use it. I wonder if it may have been Acanthite after silver first before being changed to Proustite. What do you think. I don't think I have ever encountered so many question marks, probablies and supposedlies before getting involved in these pseudomorphs.

Rock Currier
Crystals not pistols.
avatar Re: Pseudomorphs J to P
December 30, 2010 04:24AM
us    
Rock,

What about the Muscovite after Apatite from Conselheiro Pena, Doce valley, Minas Gerais, Brazil. I know many were brought up. You have several in your collection.

Bill
avatar Re: Pseudomorphs J to P
December 30, 2010 10:18AM
Bill,
Yes, I know those should be in there but I don't have a photograph of any in my collection and I will eventually be forced to take pictures of them and upload them to mindat. But this is true of several hundred specimens in my collection. While I was taking pictures I concentrated on specimens I didn't have in my collection. After all, if you have the real thing in your collection, why in the world would you want to waste your time taking pictures of them when you could always just go out and look at the real thing? Sometimes I needed pictures for articles I was writing or programs I was asked to give to gem and mineral societies, so I did take a few pictures of things in my collection.

Rock Currier
Crystals not pistols.
Re: Pseudomorphs J to P
January 06, 2011 02:42PM
us    
Hi Rock,

I just posted a photo of a pseudo of Muscovite var. (Damourite) after Tourmaline (Photo ID 355915) you can use if you wish. Not sure if it would
go under "M" or "D" in your write-up. These pseudos are found at other locations in Maine and California I have been told,but haven't seen
specimens or photos as yet.Thanks.


Cliff



Edited 1 time(s). Last edit at 01/17/2011 12:12AM by Clifford Trebilcock.
avatar Re: Pseudomorphs J to P
January 06, 2011 11:21PM
Clifford,
Yes, thank you, thats an interesting piece and worth putting in the article. I have done so.

Rock Currier
Crystals not pistols.
avatar Re: Pseudomorphs J to P
January 16, 2011 09:08PM
Rock,

Per comments in "A to C", I'm posting a set of specimens that hit localities and/or replacements not well represented in the articles at present, rather than saying these are all The Best. Thank you for your efforts!


Kaolinite after leucite
Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Brazil
Pseudo / loc is already represented, but this is a pretty good example.

Lazulite after orthoclase
Cerro de Potosí (Cerro Rico), Potosí City, Potosí Department, Bolivia

Leonite after picromerite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany

Lepidolite after elbaite
Jacare Mine, Itinga, Jequitinhonha valley, Minas Gerais, Brazil
The Jacare Mine isn’t in MinDat yet but I don’t know anything beyond the name. There are other examples of this on the locality listing as well.

Muscovite after plagioclase
Whitehorse Mining District, Yukon Territory, Canada
There are other examples of this pseudo on the locality listing as well; the other photos are more professional.

Opal after [chabazite?]
Fish Lake Valley, Mineral Co., Nevada

Orthoclase after leucite
Kamam-Kalehövük, Kırşehir Province, Central Anatolia Region, Turkey
There is another example of this pseudomorph in the gallery for this locality, but this is really nice representation.

“Pinite” after cordierite
Manzat, Puy-de-Dôme, Auvergne, France
Re: Pseudomorphs J to P
January 16, 2011 11:22PM
plancheite after calcite and dioptase, Tantara, RDC, miniature
Attachments:
open | download - plancheite, mindat.jpg (655.8 KB)
Re: Pseudomorphs J to P
January 16, 2011 11:30PM
mottramite after wulfenite, Tsumeb, miniature
Valère Berlage Collection
Attachments:
open | download - 6Tsumeb! Liège 2010 053.jpg (524.6 KB)
avatar Re: Pseudomorphs J to P
January 16, 2011 11:32PM
Valere,
Thats a nice specimen. Could you supply an in focus picture of the entire specimen and upload it to Mindat? If so, Ill put it in the article.

Rock Currier
Crystals not pistols.
Re: Pseudomorphs J to P
January 17, 2011 07:27AM
I Rock, I will try to do some better shots this evening, luckyly the speciment is at home!!
All the best
Valère
Re: Pseudomorphs J to P
January 17, 2011 07:42AM
Hello again Rock,
I have also a pretty good pseudomorph of quartz after wulfenite, I have no good picture, but a good shot of the speciment I purchased is still available on Rob Lavinsky website: TCQ15 - Quartz ps. after Wulfenite
Tsumeb, Namibia
small cabinet, 7.3 x 6.6 x 3.6 cm, it is a very original speciment I think
You will easyly find it in his database, may be could you use this shot with his agreement?
Valère
avatar Re: Pseudomorphs J to P
January 17, 2011 08:03AM
Valere Berlage Wrote:
-------------------------------------------------------
> Hello again Rock,
> I have also a pretty good pseudomorph of quartz
> after wulfenite, I have no good picture, but a
> good shot of the speciment I purchased is still
> available on Rob Lavinsky website: TCQ15 - Quartz
> ps. after Wulfenite
> Tsumeb, Namibia
> small cabinet, 7.3 x 6.6 x 3.6 cm, it is a very
> original speciment I think


Valere

That's really a beautiful sample -- very nice, and puts to shame the various things I've been throwing at the wall. Even easier, though, as Rob has previously posted it to MinDat and I've linked it here: Quartz after wulfenite.

Probably should be in the "Best Pseudomorphs: Quartz" thread, though.

Cheers,
D.
avatar Re: Pseudomorphs J to P
January 17, 2011 11:51AM
Valere,
Yes that is a fine specimen and it will find a home in the article.

Rock Currier
Crystals not pistols.
Re: Pseudomorphs J to P
January 17, 2011 06:57PM
Hello again, here is a better picture of the Tsumeb pseudomorph miniature, difficult to focus though, impossible to focus on the whole piece and have a nice view of the two best crystals in the same picture, at least with my basic photographic skills.
I got it from Willy Israel as mottramite after wulfenite, however there has been a discussion on FB about that sample because of the hexagonal shape of the two crystals, which could make think about mottramite after chalchocite. However M Sussman has had hexagonal wulfenite from Tsumeb, and the calcites crystals has the typical basic shape of secondary tsumeb calcite. However, 100 % certitude is difficult to obtain!
I have one other nice Tsumeb pseudomorph, second and third pictures, cabinet, hollow hexagonal crystals up to about 2 cm, However I do not propose it as long as the composition is not known for sure (could be motramite, descloizite or many other), after what???
All the best
Valère
Attachments:
open | download - 2pseudomorphes 016mindat.jpg (486.3 KB)
open | download - 1pseudomorphes 002.jpg (638.1 KB)
open | download - 1pseudomorphes 007.jpg (561 KB)
avatar Re: Pseudomorphs J to P
January 17, 2011 09:34PM
Valere,
For inclusion in best minerals you will need to learn how to take better photographs. For the Mottramite after Wulfenite I think you will need to take the specimen out of the Perky box to photograph it properly. You should easily be able to pry/lift the Styrofoam base it is attached to out of the box with little effort. Slip a knife blade in along the edge of the foam and gently pry it out with the specimen attached. Put it on some sort of white or light gray back ground and you should then be able to easily shoot it from any angle. If you can set you camera for tungsten lighting, you can use tungsten light, but if not you will need to take the picture in diffuse sun light. Use a tripod or some other device to steady your camera and make sure that the f stop is at least f16 or f22 or smaller if you can manage it. This will insure that you will get maximum depth of field. If your camera can't focus up close to the specimen, you should take the picture as close to the specimen as possible and still make sure that the specimen is in focus. How many mega pixels can your camera do for an image. Even if the specimen can't fill the screen, the image can be cropped and still show good resolution provided you are using any sort of decent camera.
Rock

Rock Currier
Crystals not pistols.
Re: Pseudomorphs J to P
January 18, 2011 07:36AM
Hi Rock,

I will work on this next Week End to submit you new pics, As camera, I have a canon Ixus 750.
To remove the speciment from its box, and take the pics from a bigger distance, on a tripod might help!
All the best
Val
avatar Re: Pseudomorphs J to M
August 13, 2011 03:51PM
be    
Hi Rock,

Happy to contact you again.
I have a new recrute for the article.


Enjoy.

Take care and best regards.

Paul.
avatar Re: Pseudomorphs J to M
August 14, 2011 02:18AM
Paul,
Before an image is included in the best minerals articles, it must be uploaded to the Mindat Image gallery. The image you have included above is only an attachment to a thread post. When you upload it to our image gallery you will need to say what the mineral is: Malachite after ??, how large it is and choose the flavor of copyright protection you would like. Get back to me if you need instructions on how to do this.

Rock Currier
Crystals not pistols.
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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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