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Minerals

6323 results

Lehnerite Locality: Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany (Locality at mindat.org) Picture width 3 mm. Collection and photograph Christian Rewitzer Mineral

Lehnerite

lehnerite

Formula
Mn²⁺(UO2)2(PO4)2 * 8H2O
Leifite Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada (Locality at mindat.org) Size: 1.8 x 1.5 x 1.4 cm. A superb cluster of translucent, 3-dimensional leifite crystals of the most desirable habit - showing real terminations instead of merging into an acicular mess as some styles do. Ex. Carlton Davis Collection. Mineral

Leifite

leifite

Formula
Na7Be2(Si15Al3)O39(F,OH)2
Leightonite Locality: Salvadora mine, Caracoles, Sierra Gorda district, Tocopilla province, Antofagasta Region, Chile Field of view 7 mm. Specimen and photo Leon Hupperichs. Mineral

Leightonite

leightonite

Formula
K2Ca2Cu(SO4)4(H2O)2
Mineral

Leishmanite

leishmanite

Formula
Ba(H2O)4[(UO2)3O2(OH)3]2·3H2O
Orange-yellow sharp microcrystals of the extremely rare tellurate mineral leisingite, in a white contrasting matrix. From: Centennial Eureka Mine, Juab County, Utah, United States of America. Mineral

Leisingite

leisingite

Formula
[Mg(H2O)6]Cu2MgTe⁶⁺O6
Leiteite Locality: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia (Locality at mindat.org) Size: 3.0 x 2.4 x 1.2 cm. Leiteite is a very rare zinc arsenate mineral species named in 1977 from a single aberrant specimen found at Tsumeb, and then found sparsely in a few more pockets in the so-called germanium levels of the final and deepest part of the mine. In all the previous years at Tsumeb, none had been found until the miners went down to a third oxidation zone and encountered a bizarrely germanium-rich zone from which new species came in profusion. Ludlockite and leiteite among the most well known. Most of the examples of these species are fibrous. This specimen, however, shows robust crystal faces, and real crystal form. It is also extremely translucent and attractive, whereas most leiteite is opaque, fibrous, and looks more like white asbestos than a mineral specimen. This is a superb example of the species and an important specimen of good size for a leiteite crystal. Ex. Eric Asselborn Collection. Mineral

Leiteite

leiteite

Formula
ZnAs³⁺2O4
Lemanskiite Locality: El Guanaco Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile (Locality at mindat.org) Field of view 10 mm. Specimen and photo Leon Hupperichs. Mineral

Lemanskiite

lemanskiite

Formula
NaCaCu5(AsO4)4Cl * 3H2O
Lemmleinite-Ba with natrolite - Russia, Kola, Kovdor Massif - Iron Mine (TL) - 5 mm Mineral

Lemmleinite-Ba

lemmleinite-Ba

Formula
Na4K4Ba2+ₓTi8(Si4O12)4(OH,O)8·8H2O
Lemmleinite from Kola Peninsula. Ex. Erich Laskowski collection (USA). Mineral

Lemmleinite-K

lemmleinite-K

Formula
Na4K8Ti8(Si4O12)4(OH,O)8·8H2O
Lemoynite Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada (Locality at mindat.org) Picture width 3 mm. Collection and photograph Christian Rewitzer Mineral

Lemoynite

lemoynite

Formula
(Na,K)2CaZr2Si10O26 * 5H2O
Lenaite - inclusion in test sample for SEM-analysis - Privolnoye, Sakha Republic (Yakutia), Russia Mineral

Lenaite

lenaite

Formula
AgFeS2
Lengenbachite on Dolomite. Main crystal size: 1.5mm. Dr. Eva Drechsler Coll. Photo Joan Rosell. All rights reserved. Mineral

Lengenbachite

lengenbachite

Formula
Ag4Cu2Pb18As12S39
Mineral

Leningradite

leningradite

Formula
PbCu3(VO4)2Cl2
Mineral

Lennilenapeite

lennilenapeite

Formula
K6-7(Mg,Mn,Fe,Zn)48(Si,Al)72(O,OH)216 * 16H2O
Dark green microcrystals of the rare vanadium mineral lenoblite from the famous Grube Clara (Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany). Mineral

Lenoblite

lenoblite
Leogangite Locality: Vogelhalt District, Vogel Alp, Schwarzleograben, Hütten, Leogang, Saalfelden, Salzburg, Austria Field of view 4 mm. Depth of field is achieved with CombineZM. Specimen and photo Leon Hupperichs. Mineral

Leogangite

leogangite

Formula
Cu10(AsO4)4(SO4)(OH)6 * 8H2O
White crystal aggregates of the extremely rare Mg-Al-fluoride mineral leonardarsenite from a remote locality in Alaska (Valley of Ten Thousand Smokes, Dillingham Borough, Alaska, United States of America). Ex. Erich Laskowski collection (USA). Mineral

Leonardsenite

leonardsenite

Formula
MgAlF5·2H2O
Leonite, Halite Locality: Potash Mine, Roßleben, Querfurt, Saxony-Anhalt, Germany (Locality at mindat.org) Leonite as white pseudomorphs after picromerite crystals; minor halite is associated underneath and around the backside. It is, overall, a very attractive miniature. It carries an old label from the Bergakademie Freiberg. Sharp and complete all around, very 3-dimensional. 5.7 x 4.5 x 3.6 cm Mineral

Leonite

leonite

Formula
K2Mg(SO4)2·4H2O
Mohs
2.75
Mineral

Lepageite

lepageite

Formula
Mn²⁺3(Fe³⁺7Fe²⁺4)O3[Sb³⁺5As³⁺8O34]
Lepersonnite-(Gd), Studtite, Curite, Uraninite Locality: Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) (Locality at mindat.org) Size: 2.4 x 1.5 x 2 cm. Lepersonnite-(Gd) is a very rare REE-uranyl carbonate from Shinkolobwe. Here it is intergrown in the yellow Studtite clusters (surrounded by smaller Uranophane xls). The difference is obvious and visible under magnification where the Lepersonnite-(Gd) forms flat crystals while the Studtite forms needles. The orange mineral is Curite. The Shinkolobwe mine is closed since the late 1950’s and is the type locality for all three of these: Lepersonnite-(Gd), Studtite and Curite. This Photo was Mindat.org Photo of the Day - 7th Feb 2010 Mineral

Lepersonnite-(Gd)

lepersonnite-(Gd)

Formula
CaGd2(UO2)24(CO3)8Si4O28·60H2O
Mineral

Lepersonnite-(Nd)

lepersonnite-(Nd)
Lepidocrocite Locality: Alto das Quelhas do Gestoso Mines, Gestoso, Manhouce, São Pedro do Sul, Viseu District, Portugal Picture width 1 mm. Collection and photograph Christian Rewitzer Analysed specimen Mineral

Lepidocrocite

lepidocrocite

Formula
Fe³⁺O(OH)
Mohs
5
Mineral

Lepkhenelmite-Zn

lepkhenelmite-Zn

Formula
Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O
Mineral

Lermontovite

lermontovite

Formula
U(PO4)(OH) * H2O