Rutilated Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2 with Epidote/Tourmaline inclusions
mineral
Category
Metamorphic Mineral
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Pyrite
Iron Disulfide (FeS2)
mineral
Marble
Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)
metamorphic
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Magnetite (Iron Ore)
Iron(II,III) oxide (Fe3O4)
mineral
Greenschist (Greenstone)
Chlorite Schist / Greenschist Facies Rock
metamorphic
Schist
Mica Schist
metamorphic
Rhodonite
Rhodonite (MnSiO3)
mineral
Biotite (Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
mineral
Schist
Mica Schist
metamorphic
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Magnetite or Magnetic Iron Ore
Magnetite (Fe3O4)
mineral
Gneiss (foliated metamorphic rock)
Gneiss
metamorphic
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Chrysocolla on Matrix
Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Staurolite (Fairy Cross)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Biotite on Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Gneiss
Metamorphic rock of high-grade regional metamorphism
metamorphic
Mica Schist with Quartz
Mica-Quartz Schist (Muscovite subclass)
metamorphic
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
mineral
Tiger's Eye
Silicon dioxide (SiO2) with fibrous inclusions of crocidolite
Mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Greenschist
Greenschist (Actinolite-Chlorite Schist)
metamorphic
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide with inclusions (SiO2)
mineral
Rhodolite Garnet
Mg3Al2(SiO4)3 - Fe3Al2(SiO4)3 (Pyrope-Almandine series)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Eagle Eye / Grey Tiger Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Citrine
SiO2 (Silicon Dioxide)
mineral
Pink Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Greenschist / Migmatite
Regional Metamorphic Complex (Facies: Greenschist to Amphibolite)
metamorphic
Natural Gemstone Cabochons (Ruby, Moonstone, Emerald, Citrine)
Ruby (Al2O3:Cr), Moonstone (KAlSi3O8), Emerald (Be3Al2(SiO3)6:Cr), Citrine (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic