Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic
Browse igneous, sedimentary, metamorphic specimens identified by the Rock Identifier community.
Learn about Igneous, Sedimentary, Metamorphic in the encyclopedia
View all →
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
mineral
Gold Nugget
Native Gold (Au)
mineral
Quartz (Milky/Crystalline)
Quartz (Silicon Dioxide, SiO2)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz Fragment
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Loadstone candidate)
Iron(II,III) oxide (Fe3O4)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Gneiss (Augen Gneiss)
Augen Gneiss
metamorphic
Hematite
Iron Oxide (Fe2O3)
mineral
Epidote with Quartz
Ca2(Al,Fe)3(SiO4)3(OH) (Epidote) / SiO2 (Quartz)
mineral
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Ruby in Zoisite
Zoisite with Corundum (Ca2Al3(SiO4)(Si2O7)O(OH) + Al2O3)
metamorphic
Ruby in Zoisite
Anyolite (Ruby in Zoisite)
metamorphic
Gneiss
Gneiss
metamorphic
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Gneiss
Gneiss
metamorphic
River Stone (River Pebble)
River Stone (Composition: primarily Quartzite, Chalcedony, and silicate minerals)
sedimentary
Biotite Schist
Biotite-rich Schist
metamorphic
Garnet in Host Rock
Garnet Group (A3B2(SiO4)3)
metamorphic
Schist
Chlorite/Mica Schist
metamorphic
River Pebble (Gneiss/Schist mix)
Metamorphic rock aggregate
metamorphic
Granite / Gneiss (Felsic Metamorphic or Igneous Rock)
Gneiss (or weathered Granite)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Pebble (River Agate / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained / Orange Quartz)
Silicon Dioxide (SiO2)
mineral