 | | Report (edition) | | ................... 76 vi Chapter 8 Minor pegmatite gemstones 77 Lepidolite............................................ 238 Chapter 27 Variscite 239 Variscite properties...................................................................... 239 Variscite in Western Australia.............................................................. 27 3.1 Pegmatite block containing large, pale-green, euhedral beryl...of feldspar and quartz, Londonderry feldspar pegmatite............... 69 Polished specimen of graphic |  | | Journal (article/letter/editorial) | | GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS, BRAZIL: GENETIC IMPLICATIONS Maxime...Grand-Duché de Luxembourg Abstract The Sapucaia pegmatite is located in the well-known Eastern Brazilian...Minas Gerais, Brazil. Detailed mapping of the pegmatite body revealed five zones, showing distinct mineral...quartz core (Q). Phosphate masses found in the pegmatite contains two different assemblages: assemblage...geochemically primitive LCT-type pegmatite. The degree of differentiation of the pegmatite increases from the border |  | Scholz, R., Chukanov, N. V., Filho, L. A. D. M., Atencio, D., Lagoeiro, L., Belotti, F. M., Chaves, M. L. S. C., Romano, A. W., Brandão, P. R., Belakovskiy, D. I., Pekov, I. (2014) Césarferreiraite, Fe2+Fe3+2(AsO4)2(OH)2·8H2O, from Eduardo mine, Conselheiro Pena, Minas Gerais, Brazil: Second arsenate in the laueite mineral group. American Mineralogist, 99 (4) 607-611 doi:10.2138/am.2014.4695 | Journal (article/letter/editorial) | | 2012-099) of triclinic symmetry, from Eduardo pegmatite mine, Conselheiro Pena municipality, Minas Gerais...Keywords: Césarferreiraite, new mineral, granitic pegmatite, Conselheiro Pena, Minas Gerais, Brazil, laueite...during the preparation of the Eastern Brazilian Pegmatite field trip for the 4th International Symposium on...many studies of the mineralogy of ores and in the field of geometallurgy. During the last 15 years, he was...cm3 miarolitic cavity in albite in the Eduardo pegmatite mine (“Lavra do Eduardo,” in Portuguese), near |  | | Journal (issue) | | SWEDEN 5 Cover 1. Hambeigite. Ranglad 'skoye pegmatite field, E. Pamirs. 8x 4 cm. Specimen:A.M. Skrigitil'...probably, by the geologists' lack of knowledge in the field of jewelry stones. On the basis of the materials...concentrate thus obtained is subjected to so-called field enrichment. This process consists in the extraction...most interesting pegmatites of the Rangkul' pegmatite field are distributed over the area of the Muzkol-Rangkul'...gemstones are distinguished in the Rangkul' pegmatite field. The first type comprises miarolitic pegmatites |  | | Journal (issue) | | Associate Editors Pierre Bariand Sorbonne Paris, France Joel A. Bartsch Houston Museum of Nat. Sci. Houston...Schwab Orleans, France Associate Photographers Nelly Bariand Sorbonne Paris, France Dan Behnke Northbrook...Island, 7:310-314 MADAGASCAR The Anjanabonoina pegmatite, 20:191-200 MALAWI Zomba district, 25:29-35, 38...28:109-130, 157 SOUTH AFRICA The Kalahari Manganese Field, 9:137-153 The Messina mining district, 22:187-199...Palabora mine, 22:255-262 The Kalahari Manganese Field, an update, 22:279-297 Gold in South Africa, 23:209-225 |  | | Report (edition) | | ........................ 78 Chapter 11 Minor pegmatite gemstones 79 Lepidolite ........................................... 218 Chapter 29 Variscite 219 Variscite — gemstone properties .......................................................... 219 Variscite in Western Australia .................................................. 80 Location of minor pegmatite gemstones in Western Australia .................Botryoidal lepidolite from the Londonderry feldspar pegmatite ............................................. |  | Dill, H. G., Melcher, F., Gerdes, A., Weber, B. (2008) THE ORIGIN AND ZONING OF HYPOGENE AND SUPERGENE Fe-Mn-Mg-Sc-U-REE PHOSPHATE MINERALIZATION FROM THE NEWLY DISCOVERED TRUTZHOFMUHLE APLITE, HAGENDORF PEGMATITE PROVINCE, GERMANY. The Canadian Mineralogist, 46 (5) 1131-1157 doi:10.3749/canmin.46.5.1131 | Journal (article/letter/editorial) | | NEWLY DISCOVERED TRUTZHOFMÜHLE APLITE, HAGENDORF PEGMATITE PROVINCE, GERMANY Harald G. DILL§ and Frank MELCHER...(THM) at the western border of the Hagendorf Pegmatite Province, Germany. We describe the sequence of...silicates. In contrast with the neighboring Hagendorf pegmatite, the magmatic and hydrothermal phosphate mineralization...des silicates de Sc. Contrairement au cas de la pegmatite de Hagendorf voisine, les assemblages magmatiques...Trutzhofmühle, at the western border of the Hagendorf Pegmatite Province, Germany, renowned for its mineral wealth |  | | Journal (issue) | | CONTENTS Page Feature Articles: The Coolgardie pegmatite field, Western Australia Mark I. Jacobson .........European correspondent. Pierre-Nicolas is weU known in France as a writer on mineralogical topics and is the...Mineralogy Vol 3, No 2, December 1997 %e Coo(gardie Pegmatite :fie[� 'Western .9Lustrafia Mark I. Jacobson Chevron...70593 California, USA This n otable Australian pegmatite locality has produced a range of lithium minerals...the Western Australian outback, an abundance of pegmatite fields stretch from the fiercely hot and arid |  | | Journal (issue) | | terrain throughout much of the Pacific Northwest made field collecting more difficult than in areas to the south...community and dealers to serve them gradually evolved. Field collecting has flourished throughout the Northwest...1923, at the age of 27, and became an enthusiastic field collector along with his first wife Hilda. It was...Agate and Mineral Society (OAMS) and took part in field trips to collect more agates, thunder eggs, petrified...British Columbia (1960), and Guidebook for Geological Field Trips, San Juan Island, Washington (1965). He was |  | | Book (edition) | | negatives of the photographs he has taken on numerous field trips; many of the prints from these negatives appear...Sodalite, Olivine (Peridot), Turquois, Prosopite, Variscite, Jade (Nephrite and Jadeite), Rhodonite, ldocrase...W. pegmatite mine, Pala, California 17. Mack mine, Rincon, California 18. Beryl-bearing pegmatite, Baja...Ramona, California 21. Gem-bearing pocket in pegmatite, Baja California 22. Drawing of topaz crystal...7. Map of Honduras opal sources 28. Morefield pegmatite, Amelia, Virginia Xlll 3 5 5 6 11 12 13 19 20 |  | | Journal (article/letter/editorial) | | originally described from the Sapucaia Velha pegmatite mine, Galileia, Minas Gerais, Brazil, as a hexagonal...brownish-white fibers coating muscovite, quartz, variscite, and frondelite, and is also associated with roscherite...roscherite. It has been identified from the Noumas pegmatite, Namaqualand, South Africa (von Knorring 1985)...notes: Crystallography of faheyite, Sapucaia pegmatite mine, Minas Gerais, Brazil. American Mineralogist...Faheyite, a new phosphate mineral from the Sapucaia pegmatite mine, Minas Gerais, Brazil. American Mineralogist |  | | Journal (issue) | | Reno, Nevada photography Nelly Bariand Paris, France Werner Lieber Heidelberg, West Germany Olaf Medenbach...Enio pegmatite .............................. 67 by J. P. and J. O. Cassedanne The Urubu pegmatite and...March-April, 1981 Minerals of the Lavrad o Enio Pegmatite by J. and J. Cassedanne Federal University o f...Janeiro, Brazil INTRODUCTION Recently, a small pegmatite body in Minas Gerais has produced magnificent...vivianite crystals (J. and J. Cassedanne, 1978). This pegmatite contains an abundance of many minerals, mainly |  | | Book (edition) | | Peru, H Gypsum, xx 40 mm, Las Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite...authors and a stud) of recent literature in the field of mineralogy. Current encyclopedic books mostly...Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite Sn2 /•O6'OH) 14Cl 1,, (3.D). Trigona]...celestine, fluorite, and jarlite in cryolite pegmatite at Ivigtut, Greenland. MR 24, 36, 1993. Adamite...dolerite at St.-Pandelon, near Dax, Landes dept., France, also at Karakat, Karamazar Mts., Tajikistan. BM |  | Dill, H. G., Skoda, R., Weber, B., Berner, Z. A., Muller, A., Bakker, R. J. (2012) A Newly Discovered Swarm of Shear-Zone-Hosted Bi-As-Fe-Mg-P-Rich Aplites and Pegmatites in the Hagendorf-Pleystein Pegmatite Province, Southeastern Germany: A Step Closer to the Metamorphic Root of Pegmatites. The Canadian Mineralogist, 50 (4) 943-974 doi:10.3749/canmin.50.4.943 | Journal (article/letter/editorial) | | APLITES AND PEGMATITES IN THE HAGENDORF–PLEYSTEIN PEGMATITE PROVINCE, SOUTHEASTERN GERMANY: A STEP CLOSER...The Miesbrunn pegmatite–aplite swarm (MPAS), part of the Hagendorf–Pleystein pegmatite province, southeastern...in the pH range 5 to 10, whereas the stability field of Fe3+ phosphates extended toward lower values...of mineralization at the deepest parts of the pegmatite, close to its root zone, and on the other, within...pegmatites (i.e., not exposed). Keywords: shear zone, pegmatite–aplite swarm, phosphate, sulfide, arsenide, Miesbrunn |  | | Journal (issue) | | Kalahari Manganese Field 7(1):40-41W; 8( I ):42-43W Wessels Mine, Kalahari Manganese Field 7(1):41W; 8(1):42...Kalahari Manganese Field, South Africa 8(1):43W Wessels Mine, Kalahari Manganese Field, South Africa 8(1):42W...7(2):81fW N'Chwaning II Mine, Kalahari Manganese Field, South Africa 7(1 ):40-41 fW Pheasant Creek road-cutting...Celestine N'Chwaning II Mine, Kalahari Manganese Field, South Africa 7(1):40 41fW; 8(1):43W Cerianite-(Ce)...7(1 ):37W N'Chwaning II Mine, Kalahari Manganese Field, South Africa 8(1):43W Anthophyllite, see also |  | | Catalog/List | | Lots” or type your desired Lot # into the “Search” field. Every lot is listed with full descriptions and...Minerals, ex. Chicago Museum of Natural History (Field Museum) [Hoppel #D1463] Estimate: $2,500-$3,500... N’Chwaning Mines, Kuruman, Kalahari Manganese Field, Northern Cape Province, South Africa Waiting for...his efforts to advance this vital and fascinating field survived his passing. Art wanted to sponsor the...000 52068 CROCOITE Adelaide Mine, Dundas Mineral Field, Zeehan District, Tasmania, Australia Riddle: What |  | | Book | | profession he tried to become a leading figure in his field of electronic printing, a frontrunner in his business...and being located near Pleystein our “scientific field camp”. I could not imagine to see him without a...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of...everything has been told about this prominent pegmatite. Professor Strunz was a generous and open-minded |  | | Book (volume) | | Ul co.cc cket ec ek Figure 15. Elizabeth R.’pegmatite mine, Pala, San Diego County, CA <2.-.cct sees:...sites Figure 22. Map of North American diamond field locations Figure 23. Map of diamond areas near...Figure 28. De KalbyiN 135 Figure 29. Morefield pegmatite mine Amelia‘ CountysVAce...kee en eee co ee 146...146 Figure 30. Map of Morefield pegmatite body, Amelia County, VA ............ecsssecseeeenee eal ...csvonern decane 468 Figure 94. Mount Mica Pegmatite workings, Paris, Oxford County, ME..........0cccee |  | Dyar, M. D., Jawin, E. R., Breves, E., Marchand, G., Nelms, M., Lane, M. D., Mertzman, S. A., Bish, D. L., Bishop, J. L. (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data. American Mineralogist, 99 (5) 914-942 doi:10.2138/am.2014.4701 | Journal (article/letter/editorial) | | expressed in velocity units by convention in this field. Isomer shift is caused by overlap between the nucleus...moment and the gradient of the surrounding electric field, which cause the I = 3/2 level to split into two...and a large contribution to Δ from the electronic field. In high-spin Fe3+, which has electronic 3 2 configuration...electronic field remains spherical. Of course, in both cases, asymmetry in the lattice field causes [6]Fe2+...Bavaria, Germany Tip Top pegmatite, Black Hills, South Dakota Serra Branca pegmatite, 12 km south of Pedra |  | | Book | | a fracture, producing such forms as aegirine pegmatite. As well, hot hydrothermal fluids often carry...cm Magnetism Some minerals react to a magnetic field. Some are attracted to a magnet, some are weakly...elaborate cigarette cases were being made in Russia, France and England. Russian cases of that period exhibited...Kongsberg, Norway; Sainte-Marie-auxMines, Alsace, France; Schemnitz, Czech Republic. Africa: Tsumeb, Namibia...Chile. Europe: Sainte-Marie-aux-Mines, Alsace, France; Wolfsburg and Sankt Andreasberg, Lower Saxony |  | | Journal (issue) | | Smithsonite-Mark Hughston collection, page 144; Variscite-Gus and Jane Eifler coLlection, page 82; Cinnabar-Rob...across, and more. Exploitation of this remarkable pegmatite continued intermittently until 1937, when the...bed. lt proved to be topaz from a Precambrian pegmatite cutting coarse-grained reddish granites of the...(including the 15.5-carat "Star of Arkansas") on recent field trips to the Crater of Diamonds State Park in Murfreesboro...has continued, and I've taken the opportunity to field collect wherever and whenever I can. In the last |  | | Catalog/List | | ...........................................145 France .................................................raining down on you, in a dark hole in the ground. Field collectors know that this is the rule, not the exception...HA.com/5445 72057 Variscite, Crandallite & Wardite Little Green Monster Variscite Mine, Clay Canyon,... Utah, USA “A polished slab of variscite showing the green variscite, the yellow crandalite and the grey...chiely for the lovely green lapidary material Variscite, found in their interiors. The nodules, as mined |  | | Journal (article/letter/editorial) | | kilometers south of Bancroft, near L’Amable, is a pegmatite locality well known for dravite specimens. Fodi...identification as phenakite was made. A follow-up field trip by muse- um staff yielded more samples of...cassiterite. This mineralization occurs in small aplite-pegmatite dikes and veins ranging in thickness from approximately...abstracts of contributed papers, 10. EXCAVATION OF A PEGMATITE DIKE ON THE BOWER POWERS FARM, PIERREPONT, ST...outcrop, however, had the appearance of a linear pegmatite dike. In the late 1950s and early 1960s, the late |  | | Journal (issue) | | While other children struggled mightily to avoid field trips and family outings to the purportedly dusty...specimens. ~ How, after being inactive in this field for several years, we have accumulated a line stock...stratovolcano in the Central Slovakia Neogene Volcanic Field, in the Inner Western Carpathians. This stratovolcano...the Terezia and Bieber veins of the Juraj mining field on the 12th level of the Nova shaft (Stevko et al...Native gold crystals with sphalerite and quartz, field of view 1.5 cm, from the Schopfer mine, Hodrusa-Hamre |  | | Journal (issue) | | STATE GEOLOGICAL MUSEUM Rock crystal. Dauphine, France. 13 x 7 cm. VSGM, Is§20980, Photo: M, Leybov. ...collected by museum staff members during their field trips. In addition to minerals from the abovementioned...hall. A systematic division and the display "The Pegmatite Minerals" are located in the second hall. Expositions...specimens: a splendid rock crystal druse from Dauphine (France); a large (15 x 10 cm) Japanese twin, from the...Crystals of prismatic habit (more than 2 cm) in pegmatite from II'menskie Gory, the South Urals. Wodginite |
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Pegmatite field, Collioure, Céret, Pyrénées-Orientales, Occitanie, France