Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Category
Browse organic (non geological) specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Red Jasper
Jasper (SiO2 with Fe2O3 inclusions)
Massive Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Sandstone
Arenite (composed primarily of Quartz: SiO2)
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
Obsidian (Black Obsidian)
Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)
White Quartz
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Granite
Granite (Phaneritic Igneous Rock)
Quartz (Milky/Gold-stained)
Silicon Dioxide (SiO2)
Lapis Lazuli (Tumbled Specimen)
Lapis Lazuli (Aggregate rock containing Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Jasper
Silicon dioxide (SiO2)
Granite (Light-colored quartz/feldspar variety)
Granite (composed primarily of Quartz SiO2 and Feldspar KAlSi3O8)
Basalt
Mafic volcanic rock (primarily plagioclase, pyroxene, and olivine)
Granite
Granite (Phaneritic intrusive igneous rock)
Granite
Phaneritic plutonic felsic rock (Quartz, Feldspar, Mica)
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Obsidian
Obsidian (volcanic glass), predominantly Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Fursuit (Synthetic Fur Specimen)
Canis anthropomorphus syntheticus
Quartz Druze
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphic Quartz (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Smoky Quartz with Feldspar
Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)
Quartz (Milky Quartz Pebbles)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Vanadinite
Vanadinite [Pb5(VO4)3Cl]
Green Quartz (Prasiolite/Adventurine/Jasper)
Silicon Dioxide (SiO2)
Yellow Quartzite (River Pebble)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)