Blue Calcite
Calcium Carbonate (CaCO3)
Category
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Blue Calcite
Calcium Carbonate (CaCO3)
Aventurine
Quartz (SiO2) with inclusions of Fuchsite
Calcite
Calcium Carbonate (CaCO3)
Yellow Aventurine
Quartz (SiO2) with iron-bearing inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Pyrite
Iron Sulfide (FeS2)
Agate
Agate (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Gneiss (with Quartzite and Biotite)
Gneiss containing SiO2 (Quartz), K(Mg,Fe)3AlSi3O10(OH)2 (Biotite), and (K,Na,Ca)AlSi3O8 (Feldspar)
Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Zoisite with Ruby (Anyolite)
Anyolite (Ca2Al3(SiO4)3(OH) + (Hb, Al, Cr)2O3)
Native Copper in Basalt
Amygdaloidal Basalt with Native Copper (Cu)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
Charoite
Charoite (K(Ca,Na)2Si4O10(OH,F)·H2O)
Gneiss (specifically Biotite Gneiss)
Gneiss (high-grade metamorphic rock primarily composed of Silicates)
Pyrite in Slate
Iron Disulfide (FeS2) in Low-grade Metamorphic Rock
Schist
Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)
Bull Quartz with Mica and Host Rock
Massive Quartz (SiO2) with Muscovite/Chlorite inclusions
Gneis
Gneiss (High-grade metamorphic rock)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Gneiss (Green Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Schist
Mica Schist
Fluorite
Fluorite (CaF₂)
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
Schorl (Black Tourmaline)
NaFe3Al6Si6O18(BO3)3(OH)3OH (Iron tourmaline)
Quartz Vein in Host Rock
Quartz (SiO2) in Mafic or Sedimentary Matrix
Quartz (Druzy)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)