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Anilite Locality: Tilva Mika deposit, Bor Mine, Bor, Bor-Majdanpek District, Serbia (Locality at mindat.org) Size: 5.6 x 2.8 x 2.4 cm. Extremely rare, this is a copper sulfide seldom found in such richness. It is absolutely outstanding for the species. These are 3-dimensional crystals, partially embedded in the matrix, showing an iridescent color range and demonstrating clear crystal form. Size is to 7-8 mm. Ex. Gunnar Farber Collection. Mineral

Anilite

anilite

Formula
Cu7S4
Mohs
3
Mineral

Aniyunwiyaite

aniyunwiyaite
Mineral

Ankangite

ankangite
Name : Quartz; ankerite Accession Number : GE15703 Part of the Geology collection For more details visit <a href="https://www.aucklandmuseum.com/collections-research/collections/record/am_naturalsciences-object-822724" rel="noreferrer nofollow">www.aucklandmuseum.com/collections</a> Images released under a CC-BY licence. Auckland Museum 2019 Mineral

Ankerite

ankerite

Formula
Ca(Fe²⁺,Mg)(CO3)2
Yellow green crystal aggregates of the very rare mineral ankinovichite (IMA 2002-063) from the type locality (Kara-Chagyr Mountain, Fergana, Alai Range, Osh Oblast, Kyrgyzstan) and only one of the two known localities worldwide. Ankinovichite is a nickel-zinc-aluminium vanadate. Mineral

Ankinovichite

ankinovichite

Formula
(Ni,Zn)Al4(V5+O3)2(OH)12 * 2.5H2O
Annabergite Locality: Km-3 Mine, Lavrion Mines, Lavrion (Laurion; Laurium), Lavrion District Mines, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece Size : View 2.5 cm - Crystal 0.32cm Mineral

Annabergite

annabergite

Formula
Ni3(AsO4)2·8H2O
Photograph of a coprolite containing anningite-(Ce). (b) close-up of pores containing aggregates of anningite-(Ce). Mineral

Anningite-(Ce)

anningite-(Ce)
Annite Locality: Rockport, Essex County, Massachusetts, USA (Locality at mindat.org) Size: small cabinet, 6.8 x 5.4 x 4.6 cm Annite According to MINDAT this is an extremely rare member of the Mica Group in the Biotite-Phlogopite Series. Regardless, its the most oddly crystallized mica I have seen. It looks more like a dark phosphate than a mica. From the TYPE LOCALITY where it was first noted in 1868! Mineral

Annite

annite
Back-scattered electron image of annivite-(Zn) domains (white) hosted in a zonal aggregate of Bi-rich tennantite-(Zn) in association with arsenopyrite (grey) and pyrite (black); Hřebečná, Czech Republic Mineral

Annivite-(Zn)

annivite-(Zn)

Formula
Cu6(Cu4Zn2)Bi4S12S
Anorpiment (Size 37 mm x 24 mm x 22 mm) Locality: Palomo Mine, Castrovirreyna Province, Huancavelica Department, Peru Original description: An unusual pseudomorph of Anorpiment crystals after Realgar crystals on grey Galena. JSS specimen and photo. Mineral

Anorpiment

anorpiment

Formula
As2S3
Feltspat er en blandingsrekke med tre ulike komponenter. Disse kan blandes så lenge sammensetningen er innenfor de fargete områder. Er sammensetning innenfor grå området, da danner seg to separate feltspatmineraler. Mineral

Anorthite

anorthite

Formula
CaAl2Si2O8
Mineral

Anorthominasragrite

anorthominasragrite

Formula
(V4+O)(SO4) * 5H2O
Beta-roselite, previous name for anorthoroselite Field of view: 3 mm Locality: Aghbar Mine, Aghbar, Bou Azzer, Drâa-Tafilalet Region, Morocco (locality at mindat.org) Mineral

Anorthoroselite

anorthoroselite

Formula
Ca2Co(AsO4)2·2H2O
Microphotograph of anorthoyttrialite-(Y)-1A (co-type crystal). Mineral

Anorthoyttrialite-(Y)

anorthoyttrialite-(Y)

Formula
Y4(SiO4)(Si3O10)
Dark red microcrystals of the Mn -V oxide ansermetite from the TL in Switzerland (Fianel, Ausserferrera, Ferrera Valley, Hinterrhein, Grisons, Switzerland). Ex. Erich Laskowski collection (USA). Mineral

Ansermetite

ansermetite

Formula
Mn²⁺(V2O6) * 4H2O
Mineral

Antarcticite

antarcticite

Formula
CaCl2·6H2O
Anthoinite, Ferberite (Var: Reinite) Dimensions: 4.7 x 3.3 x 2.4 cm. Locality: Bugarama Mine, Northern Province, Rwanda Description: Anthoinite is a very rare anhydrous tungstate and this very rare and weird looking combination is from an obscure Rwanda locale, an unusual Al-rich phosphate pegmatite. It is rare from any world-wide locale. Striking box-works on three sides of the matrix are filled with straw-yellow anthoinite. The matrix is a real rarity in itself. Reinite is a rare ferberite varietal, that pseudomorphs scheelite crystals. This is a large, partially euhedral pseudomorph with two sharp faces. Choice very rare material, probably mined in the 1950s or 1960s, from the Matioli Collection. Mineral

Anthoinite

anthoinite

Formula
AlWO3(OH)3
Anthonyite Dimensions: 13 mm x 12 mm x 6 mm Locality: Mexico Description: The label says only 'Mexico'; 'Villa Hermosa' is a possibility, as it is the only Mexican locality for this mineral mentioned in Mindat. Collection and photo Erik Vercammen Mineral

Anthonyite

anthonyite
Anthophyllite - Kopparberg, Ljusnarsberg, Västmanland, Sweden - Size 47x43x30 mm Mineral

Anthophyllite

anthophyllite

Formula
☐Mg2Mg5Si8O22(OH)2
Antigorite Locality: Jackson County, North Carolina, USA (Locality at mindat.org) Size: 9.1 x 5.6 x 4.9 cm. A vein of massive yellow genthite, a Kaolinite-Serpentine group mineral related to chrysotile, in sandstone. From the noted collection of William Drown who, according to the Mineralogical Record Archive on him, was an umbrella manufacturer who used his fortune to amass a collection of some 6000 mineral specimens. His collection was kept by his family for a generation after his death and then donated in 1918. Ex. Philadelphia Academy of Sciences Collection. Mineral

Antigorite

antigorite

Formula
Mg3Si2O5(OH)4
Mineral

Antimonselite

antimonselite

Formula
Sb2Se3
Colour
black
Antimony Locality: Monarch Antimony mine, Gravelotte, Murchison Range, Limpopo Province, South Africa (Locality at mindat.org) Size: 3.2 x 2.6 x 2.2 cm. An excellent specimen of brilliant, complex native Antimony crystals up to about 1 cm. Much of the matrix is covered by these crystals, some of which are broken and some of which are the faces, as revealed by cleavage of adjacent crystals in the intergrown mass. Ex. Charlie Key. Mineral

Antimony (Native)

antimony (native)

Formula
Sb
Mohs
3.3
Sky blue crystals and crystal aggregates of the extremely rare antipinite (IMA 2014-027) from the only known locality worldwide (Pabellon de Pica, Chanabaya, Iquique Province, Tarapacá Region, Chile). Associated mineral is pale green salammoniac. Antipinite is a Copper-Sodium-Potassium Oxalate, which is a very rare combination in Nature since it is a mixture between an organic mineral and an inorganic mineral. Mineral

Antipinite

antipinite

Formula
KNa3Cu2(C2O4)4
Mineral

Antipovite

antipovite

Formula
Cu5O2(PO4)2