Skip to content
Mineralati

Minerals

6323 results

Magnussonite, Allactite, Hausmannite, Dolomite Locality: Långban, Filipstad, Värmland, Sweden (Locality at mindat.org) Dimensions: 7.0 cm x 6.5 cm x 2.0 cm A very good specimen of hausmannite-dolomite ore exhibiting a fracture surface coated with relatively coarse, inter-grown blades of dark pink allactite and scattered patches of emerald-green magnussonite. Allactite is an uncommon manganese arsenate hydroxide. From Langban, Filipstad, Varmland, Sweden, the type locality for magnussonite, a manganese arsenite. Ex. Paulo Matioli and Swedish Natural History Museum collections with labels. Mineral

Magnussonite

magnussonite

Formula
Mn10As6O18(OH,Cl)2
BSE images showing magnéliite (Ti4O7) in corundum Grain 767-1. Mineral

Magnéliite

magnéliite

Formula
Ti³⁺2Ti⁴⁺2O7
Mineral

Magselite

magselite

Formula
[Mg(H2O)6](Se⁴⁺O3)
Blue crystals of the extremely rare mineral mahnertite from the type locality for the mineral (Cap Garonne, Var, Provence-Alpes-Cote d'Azur, France). Mineral

Mahnertite

mahnertite

Formula
NaCu3(AsO4)2Cl * 5H2O
Mineral

Maikainite

maikainite

Formula
Cu10Fe3MoGe3S16
Mohs
4
Mineral

Majakite

majakite

Formula
PdNiAs
Mohs
6
Mineral

Majindeite

majindeite

Formula
Mg2Mo3O8
Yellow brown single crystals of the extremely rare mineral majorite from a meteorite fall in Canada, named Peace river meteorite. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Majorite

majorite

Formula
Mg3(Fe²⁺,Si,Al)2(SiO4)3
Mohs
7.5
Mineral

Majzlanite

majzlanite

Formula
K2Na(ZnNa)Ca(SO4)4
Коллекции Уральского геологического музея: макарочкинит Mineral

Makarochkinite

makarochkinite

Formula
Ca4[Fe²⁺8Fe³⁺2Ti2]O4[Si8Be2Al2O36]
Makatite Locality: Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek, Windhoek District, Khomas Region, Namibia (Locality at mindat.org) Size: 7.5 cm x 3.9 cm x 1.7 cm A very fine 1.6-cm spray of acicular crystals of the rare species Makatite, from finds that started trickling out in the mid 1990s. Still fairly rare, even today, from this unusual phonolite deposit. Ex. Al Ordway Collection. Mineral

Makatite

makatite

Formula
Na2Si4O8(OH)2 * 4H2O
Mineral

Makotoite

makotoite

Formula
Ag12(Cu3Au)S8
Grey metallic inclusions and sharp crystals in epoxy resin of the very rare Cu-Ag sulphosalt mineral makovickyite from the type locality in Austria (Western Ore Field, Scheelite Deposit, Felber Valley, Hohe Tauern, Salzburg, Austria). Specimen analyzed by SEM/EDS by the former owner of the specimen (the Vandenbroucke Museum). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Makovickyite

makovickyite

Formula
Cu1.12Ag0.81Pb0.27Bi5.35S9
Malachit, auch als Kupferspat sowie Berg- oder Kupfergrün bekannt, ist ein häufig vorkommendes Mineral aus der Mineralklasse der „Carbonate und Nitrate“ Mineral

Malachite

Formula
Cu2CO3(OH)2
Mohs
3.5–4
Colour
Bright green
Metallic microinclusions of the extremely rare Ir-Pt mineral malanite in unspecified golden sulphides, from a cotype locality in Malan, China (Malan River Valley, Zunhua County, Tangshan, Hebei Province, China). Associated minerals after the label are olivine, serpentine and pyroxene. The specimen is polished on two sides because it was analyzed by the former owner of the specimen (the Vandenbroucke Museum). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Malanite

malanite

Formula
Cu(Pt³⁺,Ir³⁺)2S4
Mohs
5
Yellow crystals of this rare tin silicate mineral from Red-a-Ven Mine, Okehampton, Devon, United Kingdom. Mineral

Malayaite

malayaite

Formula
CaSn(SiO4)O
Maldonite Locality: Eagle Hawk Union Mine, Maldon, Victoria (Australia) Exposed in the Mineralogical Museum of University Bonn, Germany Mineral

Maldonite

maldonite

Formula
Au2Bi
Mineral

Maleevite

maleevite

Formula
BaB2Si2O8
SEM image. The maletoyvayamite-quartz association in the sample 3053-3_b, highest enrichment in noble metals (Au is 144 ppm, Ag is 200 ppm); (a) ore minerals localized along cracks in the intergranular space of quartz; (b) maletoyvayamite confined to the margins of sulfosalts grains; mlt—maletoyvayamite, gdf—goldfieldite, wtb—watanabeite, Te0.9Se0.1—Te-Se solid solution. Mineral

Maletoyvayamite

maletoyvayamite

Formula
Au3Se4Te6
Malhmoodite Locality: Kerriack Cove, Porthtowan Area, St Agnes District, Cornwall, England, UK Yellowish-white sphere on matrix. Field of view 2 mm. Specimen and photo Leon Hupperichs. Mineral

Malhmoodite

malhmoodite

Formula
FeZr(PO4)2 * 4H2O
Mohs
3
Mineral

Malinkoite

malinkoite

Formula
NaBSiO4
Mohs
7
Some yellow brown single crystals of the very rare mineral Na silicofluoride mineral malladrite from the TL in Vesuvius (Mount Vesuvius, Campania, Italy) in a capsule. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Malladrite

malladrite

Formula
Na2[SiF6]
Mineral

Mallardite

mallardite

Formula
Mn²⁺SO4·7H2O
Mohs
2
Mallestigite Locality: Mallestiger Mittagskogel, Finkenstein am Faaker See, Villach-Land District, Carinthia, Austria Description: Colourless prismatic crystals of mallestigite. Picture size 1.5 mm. Photographer and collection Thomas Witzke. Mineral

Mallestigite

mallestigite

Formula
Pb3Sb5+(SO4)(AsO4)(OH)6 * 3H2O
Mohs
4