Greenish rock with white veins, possibly epidote or chlorite bearing rock with quartz/calcite veins
Altered mafic rock or Epidosite
Category
Browse metamorphic or igneous alteration specimens identified by the Rock Identifier community.
Greenish rock with white veins, possibly epidote or chlorite bearing rock with quartz/calcite veins
Altered mafic rock or Epidosite
Sapphire
Corundum (Al2O3)
Epidote with Quartz/Feldspar
Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Nephrite Jade
Nephrite
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)
Epidote in Quartz (Epidosite)
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Dearest Jewelry (Multigemstone)
Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
Soapstone / Steatite
Steatite (primarily Talc, Mg3Si4O10(OH)2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Bornite
Bornite (Cu5FeS4)
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Mica (Muscovite)
Muscovite (KAl2(AlSi3O10)(OH)2)
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Epidote
Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))
Mixed Mineral Specimens
Mixed Silicates, Oxides, and Phosphates (SiO₂, Ca₅(PO₄)₃(F,Cl,OH), Na₈Al₆Si₆O₂₄Cl₂, etc.)
Unakite
Unakite Epidosite (Granite with epidote and orthoclase)
Green Aventurine
Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Biotite (Mica)
K(Mg,Fe)3AlSi3O10(OH,F)2
Hematite
Iron(III) oxide (Fe2O3)
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium aluminum silicate hydroxide fluoride [KAl2(AlSi3O10)(F,OH)2]
Greenschist (Greenstone)
Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
Hematite
Iron(III) oxide (Fe2O3)
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
Epidote
Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
Epidote in Matrix
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Morganite (Pink Beryl)
Beryllium aluminum silicate Be3Al2(SiO3)6
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30 (Potassium Sodium Lithium Iron Manganese Aluminum Silicate)
Hematite
Iron(III) oxide (Fe2O3)
Nephrite Jade
Tremolite-Actinolite solid solution, Ca2(Mg,Fe)5Si8O22(OH)2
Native Gold (in the form of jewelry)
Gold (Au)
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))