Tumbled Quartz (Snow Quartz)
Silicon Dioxide (SiO2)
Category
Browse metamorphic specimens identified by the Rock Identifier community.
Tumbled Quartz (Snow Quartz)
Silicon Dioxide (SiO2)
Agate
Agate (Cryptocrystalline Quartz, SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Agate
Agate (Silicon Dioxide, SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Chrysocolla (on host rock)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)
Dragon Blood Jasper
Epidote and Pietersite-rich Quartz (SiO2 with inclusions)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Clear variety)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Pyrope Garnet
Magnesium aluminum silicate (Mg3Al2Si3O12)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
Citrine
Silicon dioxide (SiO2)
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
Greasy Quartz (likely carved Milky Quartz or Aventurine)
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Quartz (Milky or Grainy Variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Black Diamond / Black Sapphire
Carbon (C) or Corundum (Al2O3)
Calcite
Calcium Carbonate (CaCO3)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
Wavellite
Wavellite (Al3(PO4)2(OH, F)3·5H2O)
Yellow Calcite
Calcium Carbonate (CaCO3)
Quartz (Gravel Pebble)
Silicon Dioxide (SiO2)
Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Aventurine (Green)
Aventurine Quartz (SiO2 + Fuchsite inclusions)