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Mineralati

Minerals

6323 results

Mineral

Melcherite

melcherite

Formula
Ba2Na2Mg[Nb6O19]·6H2O
Melilite Field of view: 1 mm Locality: Emmelberg Quarry, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany Mineral

Melilite

melilite
Meliphanite Locality: Langesundsfjorden, Larvik, Vestfold, Norway (Locality at mindat.org) Size: 1.5 x 1.5 x 0.4 cm. A colorful but probably partial crystal of this rare species. Ex. Carlton Davis Collection. Mineral

Meliphanite

meliphanite

Formula
(Ca,Na)2(Be,Al)[Si2O6(OH,F)]
Single crystal aggregate of the rare molybdenum mineral melkovite from the type locality: U-Mo Occurrence, Shunak Mountains, Karaganda Oblast, Kazakhstan. Mineral

Melkovite

melkovite

Formula
[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe³⁺3O36(OH)]
Mineral

Melliniite

melliniite

Formula
(Ni,Fe)4P
Mellite Locality: Luschitz, Bílina (Bilin), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic (Locality at mindat.org) Size: 2.2 x 1.7 x 1.7 cm. Mellite is a rare organic compound (aluminum mellitate {benzene hexacarboxylate} hydrate) that is only found in a handful of world localities. Typically, Mellite is found in brown or gray crystals, and to find a sharp, lustrous, yellow crystal like this is certainly rare. The crystal itself is superb quality, and complete on all sides. There are actually some small areas on this crystal that are gem quality. The piece comes from the Rich Kosnar Collection (specimen #512), and comes with one of Rich's signature hand-written collection labels. Mineral

Mellite

mellite

Formula
Al2[C6(COO)6] * 16H2O
Mineral

Mellizinkalite

mellizinkalite

Formula
K3Zn2Cl7
Melonite, Calaverite Locality: Kambalda, Coolgardie Shire, Western Australia, Australia Size: 25 mm x 18 mm x 11 mm Foliated melonite in quartz, pyrite on the back of the specimen. The label gives 'Cross, Australia' as the locality, but according to Ralph Bottrill: "The only verified occurrence of large specimens of melonite in Australia, to my knowledge, is the Kambalda nickel mines, in the Fischer and Lunnon shoots." Collection and photo Erik Vercammen. Mineral

Melonite

melonite

Formula
NiTe2
Mineral

Menchettiite

menchettiite

Formula
Pb5Mn3Ag2Sb6As4S24
Colour
black
Back-scatter electron images of polished sections with letnikovite-(Ce) [Lkv-Ce] in association with mendeleevite-(Ce) [Mdl-Ce], pectolite [Pct], fluorite [Fl] and quartz [Qz]: (a) the grain used for Raman spectroscopy, determination of micro-indentation hardness and reflectance spectra; (b) a microprobe mount with a grain that was deposited as holotype material (#98145) at the Fersman Mineralogical Museum. Mineral

Mendeleevite-(Ce)

mendeleevite-(Ce)

Formula
Cs6(REE22Ca6)(Si70O175)(OH,F)14(H2O)21
Mineral

Mendeleevite-(Nd)

mendeleevite-(Nd)

Formula
Cs6[(Nd,REE)23Ca7](Si70O175)(OH,F)19(H2O)16
Mendigite Field of view: 1 mm Locality: In den Dellen quarries (TL), Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany Mineral

Mendigite

mendigite

Formula
Mn2Mn2MnCa(Si3O9)2
Mendipite Locality: Mendip Hills, Somerset, England, UK (Locality at mindat.org) Size: 4.3 x 2.5 x 2.0 cm. A superb, rich specimen of mendipite in a seam of ore, from this important classic locale. Very rare material, and generally considered to be the finest of species. Mineral

Mendipite

mendipite

Formula
Pb3O2Cl2
Mineral

Mendozavilite-Kca

mendozavilite-KCa

Formula
[K2(H2O)15Ca(H2O)6][Mo8P2Fe³⁺3O34(OH)3]
Intense green crystals of mendozavilite-NaCu from Chuquicamata (Chuquicamata Mine, Chuquicamata, Calama, El Loa Province, Antofagasta Region, Chile). Ex. Erich Laskowski collection (USA). Mineral

Mendozavilite-Nacu

mendozavilite-NaCu

Formula
[Na2(H2O)15Cu(H2O)6][Mo8P2Fe³⁺3O34(OH)3]
Outstanding yellow crystals of the rare Mo mineral mendozavilite-NaFe from the TL in Mexico (Cumobabi, La Verde District, Moctezuma Municipality, Sonora, Mexico). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Mendozavilite-Nafe

mendozavilite-NaFe

Formula
[Na2(H2O)15Fe³⁺(H2O)6][Mo8P2Fe³⁺3O35(OH)2]
Colorless crystals of the rare Na-Al sulphate mineral mendozite in matrix of the same mineral. Ex.Ralph Merrill collection. From: Mecca Hills, Riverside County, California, United States of America. Mineral

Mendozite

mendozite

Formula
NaAl(SO4)2·11H2O
Meneghinite Locality: Bottino Mine, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy (Locality at mindat.org) Size: 1.1 x 0.4 x 0.2 cm. A remarkably well-formed, euhedral, twinned crystal for this rare sulfosalt species from the Type Locality. Small, but very fine and a great reference specimen. The twinning plane groove is a real attention getter. The Bottino Mine is ANCIENT, having been worked by the Etruscans! Mineral

Meneghinite

meneghinite

Formula
Pb13CuSb7S24
Mohs
2.5
Menezesite Mineral

Menezesite

menezesite

Formula
Ba2MgZr4(BaNb12O42) * 12H2O
Mineral

Mengeite

mengeite

Formula
Ba(Mg,Mn²⁺)Mn³⁺4(PO4)4(OH)4*4H2O
Mineral

Mengxianminite

mengxianminite

Formula
(Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2
Mineral

Meniaylovite

meniaylovite

Formula
Ca4AlSi(SO4)F13·12H2O
Mineral

Menshikovite

menshikovite

Formula
Pd3Ni2As3
Mohs
5
Mineral

Menzerite-(Y)

menzerite-(Y)

Formula
(CaY2)Mg2(SiO4)3