Mindat Logo

Gedrite

Formula:
☐[Mg
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
System:OrthorhombicColour:Pale greenish-grey to ...
Lustre:VitreousHardness:5½ - 6
Name:For the locality at Héas, Gedres, France

Classification of Gedrite

IMA status:Approved
Strunz 8th edition ID:8/F.12-100
Nickel-Strunz 10th (pending) edition ID:9.DD.05

9 : SILICATES (Germanates)
D : Inosilicates
D : Inosilicates with 2-periodic double chains, Si4O11; Orthoamphiboles
Dana 8th edition ID:66.1.2.5

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
1 : Amphiboles - Mg-Fe-Mn-Li subgroup
Hey's CIM Ref.:16.19.18

16 : Silicates Containing Aluminum and other Metals
19 : Aluminosilicates of Fe and Mg
mindat.org URL:http://www.mindat.org/min-1665.html
Please feel free to link to this page.

Type Occurrence of Gedrite

Type Locality:Gèdres, Héas valley, Luz-Saint-Sauveur, Hautes-Pyrénées, Midi-Pyrénées, France
Year of Discovery:1836

Physical Properties of Gedrite

Lustre:Vitreous
Colour:Pale greenish-grey to brown.
Streak:White
Hardness (Mohs):5½ - 6

Crystallography of Gedrite

Crystal System:Orthorhombic
Cell Parameters:a = 18.59Å, b = 17.89Å, c = 5.3Å
Ratio:a:b:c = 1.039 : 1 : 0.296
Unit Cell Volume:V 1,762.65 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Gedrite

Type:Biaxial (-)
RI values: nα = 1.671 nβ = 1.681 nγ = 1.690
2V:Measured: 75° , Calculated: 86°
Maximum Birefringence:δ = 0.019

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v strong

Chemical Properties of Gedrite

Formula:
☐[Mg
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
Essential elements:Al, H, Mg, O, Si
All elements listed in formula:Al, H, Mg, O, Si
Common Impurities:Mn,Ca,Ti,Na,K

Relationship of Gedrite to other Species

Series:Forms a series with Ferrogedrite (see here)
Forms a series with Anthophyllite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
9.DD.05Ferro-anthophyllite
☐[Fe
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Ferrogedrite
☐[Fe
2+
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Holmquistite
☐[Li
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protoferro-anthophyllite
☐[Fe
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protomangano-ferro-anthophyllite
☐[Mn
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodicanthophyllite
[Na][NaMg][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodic-ferro-anthophyllite
[Na][NaFe
2+
 
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodic-ferrogedrite
[Na][Fe
2+
2
][Fe
2+
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Sodicgedrite
[Na][Mg
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Ferroholmquistite
☐[Li
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protoanthophyllite
☐[Mg
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
Related Minerals - Hey's Index Grouping:

- +
16.19.1Indialite
Mg
 
2
Al
 
4
Si
 
5
O
 
18
16.19.2Cordierite
(Mg,Fe)
 
2
Al
 
4
Si
 
5
O
 
18
16.19.3Sekaninaite
(Fe,Mg)
 
2
Al
 
4
Si
 
5
O
 
18
16.19.4Ferrogedrite
☐[Fe
2+
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.19.5Staurolite
(Fe
2+
 
,Mg,Zn)
 
1.5-2
Al
 
9
[O
 
6
|(OH,O)
 
2
|(SiO
 
4
)
 
4
]
16.19.6Chloritoid
(Fe
2+
 
,Mg,Mn
2+
 
)Al
 
2
[O|(OH)
 
2
|SiO
 
4
]
16.19.7Amesite
Mg
 
2
Al[(OH)
 
4
|AlSiO
 
5
]
16.19.8Corundophilite
(Mg,Fe,Al)
 
6
(Si,Al)
 
4
O
 
10
(OH)
 
8
16.19.9Yoderite
Mg(Al,Fe
3+
 
)
 
3
[O|OH|(SiO
 
4
)
 
2
]
16.19.10Delessite
(Mg,Fe,Fe,Al)(Si,Al)
 
4
O
 
10
(O,OH)
 
8
16.19.11Ferrocarpholite
(Fe
2+
 
,Mg)Al
 
2
[(OH)
 
4
|Si
 
2
O
 
6
]
16.19.12Magnesiocarpholite
(Mg,Fe
2+
 
)Al
 
2
[(OH)
 
4
|Si
 
2
O
 
6
]
16.19.13Chamosite
(Fe
2+
 
,Mg)
 
5
Al[(OH)
 
8
|AlSi
 
3
O
 
10
]
16.19.14Orthochamosite
(Fe,Mg,Fe)
 
5
Al(Si
 
3
Al)O
 
10
(OH,O)
 
8
16.19.15Berthierine
(Fe,Fe,Mg)
 
2-3
(Si,Al)
 
2
O
 
5
(OH)
 
4
16.19.16Odinite
(Fe,Mg,Al,Fe,Ti,Mn)
 
2.4
(Si,Al)
 
2
O
 
5
(OH)
 
4
16.19.17Clinochlore
(Mg,Fe
2+
 
)
 
5
Al[(OH)
 
8
|AlSi
 
3
O
 
10
]
16.19.19Magnesiogedrite
16.19.20Diabantite
(Mg,Fe,Al)
 
6
(Si,Al)
 
4
O
 
10
(OH)
 
8
16.19.21Sudoite
(Mg,Fe
2+
 
)
 
2
Al
 
3
[(OH)
 
8
|AlSi
 
3
O
 
10
]
16.19.22Vermiculite
(Mg,Fe,Al)
 
3
(Al,Si)
 
4
O
 
10
(OH)
 
2
·4H
 
2
O
16.19.23Corrensite
(Mg,Fe)
 
9
(Si,Al)
 
8
O
 
20
(OH)
 
10
·nH
 
2
O

Other Names for Gedrite

Synonyms:
BidalotiteMagnesiogedrite
Other Languages:
German:Bidalotit
Gedrit
Magnesiogedrit
Russian:Жедрит
Spanish:Bidalotita
Gedrita
Magnesiogedrita
Varieties:
Snarumite

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Gedrite

Reference List:Mineralogical Record: 29: 169-174.

Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles: Canadian Mineralogist:
44(1): 1-21.

Schindler, M.; Sokolova, E.; Abdu, Y.; Hawthorne, F.C.; Evans, B.W.; Ishida, K. (2008): The crystal chemistry of the gedrite-group amphiboles. I. Crystal structure and site populations. Mineral. Mag., 72, 703-730.

Hawthorne, F.C.; Schindler, M.; Abdu, Y.; Sokolova, E.; Evans, B.W.; Ishida, K. (2008): The crystal chemistry of the gedrite-group amphiboles. II. Stereochemistry and chemical relations. Mineral. Mag., 72, 731-745.

Internet Links for Gedrite

Search Engines:
  • Look for Gedrite on Google
  • Look for Gedrite images on Google
  • External Links:
  • Look for Gedrite on Webmineral
  • Look for Gedrite on Athena Mineralogy
  • Look for Gedrite on Wikipedia
  • Look for Gedrite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Gedrite in the Natural History Museum (London) online catalogue
  • Gedrite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Find Gedrite on www.crystalclassics.co.uk
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Rare and Unusual minerals at Mineralogical Research Company
  • Edwards Minerals - Fine Specimens
  • Buy Minerals and Crystals from Crystalarium.com
  • rare and unusual minerals mainly crystallized
  • Fine Minerals from Dan Weinrich Minerals
  • Buy minerals from Mineralium.com
  • High-end worldwide specimens & outstanding customer service
  • Buy Fine Minerals from mineralsweb.com
  • Wilensky Fine Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Jobs:
  • Mining & Geology Jobs
  • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Gedrite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
    C. Lemanski, Jr. (re-entry lost Mindat data).
    Australia
     
    • New South Wales
      • Yancowinna Co.
        • Broken Hill
    Econ Geol (1993) 88:505-541
    • Queensland
      • Mt Isa - Cloncurry area
        • Cloncurry District
          • Roxmore Station
    2002. Rubenach, M. J. & Lewthwaite. Metasomatic albitites and related biotite rich schists from a low pressure polymetamorphic terrane, Snake Creek Anticline, Mount Isa Inlier, north-eastern Australia: microstructures and P-T-d paths. Journal of Metamorphic Geology, 20, 191-202
    • Tasmania
      • Huon district
        • Weld river
    Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
      • Rosebery district
    Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    • Western Australia
      • Youanmi
    Lead, Zinc and Silver Deposits of Western Australia, 1999
    Botswana
     
    • North-East District
      • Francistown
        • Selebi-Phikwe (Selbi-Pikwe) belt
    Maier, W.D., Barnes, S.-J., Chinyepi, G., Barton, Jr., J.M., Eglington, B., and Setshedi, I. (2008): Mineralium Deposita 43, 37-60.
    Brazil
     
    • Central-West Region
      • Goiás
        • Sanclerlândia
    Candia, M.A.F., and Gaspar, J.C. (1997): Mineralogy and Petrology 60, 27-40.
        • Uruaçu
    Econ Geol (1986) 81:1884-1898
    Canada
     
    • Ontario
      • Thunder Bay District
        • Manitouwadge
    Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360
    • Québec
      • Outaouais
        • Pontiac RCM
    Econ Geol. (1992) 87:164-171
    Finland
     
    • Itä-Suomen Lääni
    Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.
    • Länsi-Suomen Lääni
      • Perniö
    http://www.gsf.fi/explor/zinc/traskbole.htm
    France
     
    • Auvergne
      • Haute-Loire
        • Auzon
          • Azérat
    Bull. Minéral. , 1987, 110, pp. 359-371.
        • Brioude
          • Paulhac
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 ; F.H. Forestier : "Les Péridotites Serpentinisées en France", Fascicule IV, BRGM, 1964
          • Vieille-Brioude
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
        • Lavoûte-Chilhac
          • Saint-Cirgues
    F.H. Forestier : "Les Péridotites Serpentinisées en France", Fascicule 4 Haut- Allier, BRGM, 1964
    F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
          • Villeneuve d'Allier
    F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
    F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
    F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
        • Lubilhac
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 ; F.H. Forestier : "Les Péridotites Serpentinisées de France", Fascicule IV, BRGM, 1964
        • Paulhaguet
          • Salzuit
        • Pinols
          • Desges
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
        • Saugues
          • Venteuges
            • La Bastide
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
        • Torsiac
          • Lanau
    F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
    • Midi-Pyrénées
      • Aveyron
        • Decazeville
          • Almont-les-Junies
    R. Pierrot, R. Pulou, P. Picot : "Inventaire Minéralogique de la France N° 7 : Aveyron", BRGM, 1977
      • Hautes-Pyrénées
        • Luz-Saint-Sauveur
          • Héas valley
    AM 63 (1978), 1023
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Elz valley
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Lower Saxony
      • Harz Mts
        • Bad Harzburg
          • Schmalenberg cliff
    No reference listed
    No reference listed
    Greenland
     
    • Kitaa (West Greenland) Province
      • Nuuk (Godthåb)
    Petersen, O. V. & Secher, K. (1993): The Minerals of Greenland. Mineralogical Record 24 (2): 1-67
          • Bjørnesund
    Friend, C,R.L. (1982): A1-Cr substitution in peraluminous sapphirines
    Boeggild, O.B. (1953): The Mineralogy of Greenland, Reitzels Forlag Koebenhavn; Mineralogical Magazine 1987 51 : 695-708.
    Ackermand, D., Windley, B.F., Herd R.K. (1983): Magnesian Högbomite in a Sapphirine-bearing rock from the Fiskenaesset region, W. Greenland, Mineralogical Magazine, Vol. 47, 555-561
    Mineralogical Magazine 1996 60 : 937-947
    Italy
     
    • Piedmont
      • Cuneo Province
    [MinRec 27:303]
          • Varaita Valley
            • Brossasco
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d\'Aosta. Associazione Amici del Museo \"F. Eusebio\" Alba, Ed., Alba (Cuneo) 607 pp.
      • Torino Province
        • Canavese District
          • Léssolo
            • Cálea
    Le miniere di Brosso (2001)-Italo Campostrini- ed. Museo Regionale Torino
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Tottori Prefecture
          • Hino-gun
            • Nichinan-cho
    Alfredo Petrov - unpublished
    • Shikoku Island
      • Ehime Prefecture
        • Uma-gun
          • Doi
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Norway
     
    • Akershus
      • Nesodden
        • Nesoddtangen
    • Aust-Agder
      • Tvedestrand
        • Snaresund
    Touret, J. & De La Roche, H. (1971): Contribution to the mineralogy of Norway , No. 45. Saphirine à Snaresund, prés de Tvedestrand (Norvége Méridionale). Norsk Geologisk Tidsskrift 51, 170-175
    • Nordland
      • Hemnes
        • Bleikvassli
    Rosenberg, J.L., Spry, P.G., Jacobson, C.E., and Vokes, F.M. (2000): Mineralium Deposita 35, 714-726.
    Russia
     
    • Far-Eastern Region
      • Magadanskaya Oblast'
        • Kolyma River Basin
          • Ducat District
            • Omsukchan
    Filimonova, L.G., and Trubkin, N.V. (2008): Geology of Ore Deposits 50(2), 135-144.
    • Northern Region
      • Karelia Republic
        • Northern Karelia
    Nikolay Serebryakov data
          • Loukhi
            • Tedino
              • Dyadino lake
    P.M. Kartashov data
    Spain
     
    • Catalonia
      • Girona (Gerona)
        • Alt Empordà
          • Cadaqués
    Bareche, E. (2005) "Els minerals de Catalunya. Segle XX" Ed. Museu Mollfulleda de Mineralogia - Grup Mineralògic Català, 269 p.
    Sri Lanka
     
    • Central Province
    Journal of Petrology, Volume 40, Issue 8: August 1999
    Sweden
     
    • Dalarna
      • Ludvika
        • Grangärde Parish
        • Grängesberg
        • Saxberget ore field
    No reference listed
    33 IGC excursion No 12, August 14 – 20, 2008
      • Rättvik
    No reference listed
    • Hälsingland
      • Ljusdal
    No reference listed
    • Södermanland
      • Nyköping
        • Tunaberg
    No reference listed
    • Värmland
      • Filipstad
    No reference listed
        • Gåsborn
    American Mineralogist (1989) 74 (5-6), 573-585
    Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
        • Nordmark
    No reference listed
    No reference listed
    • Västmanland
      • Ljusnarsberg
        • Kopparberg
    No reference listed
      • Nora
      • Norberg
    No reference listed
    Switzerland
     
    • Ticino (Tessin)
      • Riviera
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 179.
    Tajikistan
     
    • Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni)
      • Pamir Mts
        • Pyandzh River Valley
    Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.
    UK
     
    • Scotland
      • North West Highlands (Inverness-shire)
        • Drumnadrochit
    BMS Database
    BMS Database
    [Specimen in the Natural History Museum, London]
    USA
     
    • Arizona
      • Santa Cruz Co.
        • Patagonia Mts
          • Patagonia District
    Schrader, F.C. and J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 328.
              • Nash Mines group (Duquesne-Washington group)
    Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 334.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 230; Schrader, F.C. and J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 91.
    • Colorado
      • Boulder Co.
    Minerals of Colorado (1997) Eckels, E. B.
      • Chaffee Co.
        • Sedalia District
    ("Minerals of Colorado, updated & revised", by Eckel, Edwin B., 1997)
    Minerals of Colorado (1997) Eckels, E. B.
      • Clear Creek Co.
    Minerals of Colorado (1997) Eckels, E. B.
      • Gilpin Co.
    Minerals of Colorado (1997) Eckels, E. B.
      • Gunnison Co.
    Journal of Petrology (1991) 32:6 Pages 1169-1201
      • Jefferson Co.
    Minerals of Colorado (1997) Eckels, E. B.
        • Morrison Area
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
    • Georgia
      • Douglas Co.
        • Villa Rica
    Rocks & Min.: 64:194.
      • Rabun Co.
    • Maine
      • Cumberland Co.
        • Harpswell
    www.maine.gov/doc/nrimc/mgs/explore/bedrock/b42/harpswell.htm
    www.maine.gov/doc/nrimc/mgs/explore/bedrock/b42/harpswell.htm
      • Oxford Co.
        • Grafton
    King & Foord, 1994. Mineralogy of Maine, Vol.1, p.29.
    • Massachusetts
      • Essex Co.
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
      • Hampshire Co.
    Emerson, 1917. Geology of Mass. & Rhode Island, p.71-2
    • Nevada
      • Clark Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Hampshire
    http://kilburn.keene.edu/Research/WestCentralNH/
    Schumacher and Robinson, 1987: Journal of Petrology 28 (6):1033-1073
      • Grafton Co.
        • Lisbon
    P Cristofono collection
    • North Carolina
      • Buncombe Co.
    No reference listed
    Wilson,W.F and McKenzie,B.J,1978,Mineral Collecting Sites in North Carolina,Information Circular 24
    rruff.geo.arizona.edu/doclib/hom/gedrite.pdf
    Self Collected Bruce Osborne
    • Vermont
      • Orange Co.
        • Norwich
          • Mt Cube Quadrangle
    Spear, Frank, 1982. in Journal of Petrology 23(3):383-426
      • Windsor Co.
    Rocks & Min. Vol. 71, (1996)
    • Virginia
      • Floyd Co.
        • Floyd
    Minerals of Virginia 1990 by R. V. Dietrich
    • Wisconsin
      • Jackson Co.
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 27th Oct 2009 11:43:03