Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
River Quartz Pitting/Cobble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
Garnet (Almandine/Pyrope)
Silicate Mineral (Group: X3Y2(SiO4)3 where X=Mg, Fe, Mn and Y=Al, Fe, Cr)
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Pebble (with probable iron staining)
Silicon dioxide (SiO2)
Moonstone
Orthoclase Feldspar (KAlSi3O8)
Blue Calcite
Calcium Carbonate (CaCO3)
Agate
Silicon Dioxide (SiO2) - Chalcedony variant
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite variant or Aventurine)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Orange Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-Stained Quartz Pebble)
Silicon Dioxide (SiO2)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Quartz (Peach/Orange variety)
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3) with Chromium traces
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Labradorite
Labradorite, (Ca, Na)(Al, Si)4O8
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Citrine
Silicon Dioxide (SiO2) with ferric iron impurities
Ruby
Corundum (Al2O3 with Chromium)
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Quartz with Iron Stains
Quartz (SiO2) with iron oxide/hydroxide staining
Chalcopyrite
Chalcopyrite (CuFeS2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Quartz (pebble)
Quartz (SiO₂)