Banded Metamorphic Rock
Gneiss or Schist
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Banded Metamorphic Rock
Gneiss or Schist
Fluorescent Calcite
Calcite (CaCO3)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Agate
Chalcedony (SiO2) with impurities
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
Quartz (Raw Specimen)
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
Quartz
Silicon Dioxide (SiO2)
Quartz (Pebble)
Silicon Dioxide (SiO2)
Gravel / Small Pebble
Rock Fragment (Gravel)
Fluorite
Calcium Fluoride (CaF2)
Zoisite with Rubellite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende (Anyolite)
Clear Quartz (Rock Crystal) Bracelet
Silicon Dioxide (SiO2)
Quartz (Pink / Ferruginous)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
Yellow Calcite
Calcium Carbonate (CaCO3)
Mixed Rock Collection (Pebbles and Stones)
Various geological specimens
White Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Zoisite with Ruby
Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony
Chalcedony (SiO2)
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
Garnet (specifically Almandine)
Almandine - Fe3Al2(SiO4)3
Quartz (Granular)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
Likely weathered sandstone or iron-stained sedimentary rock
Quartz-rich sandstone; exact identification is limited by the blurred photograph