Citrine (likely Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Citrine (likely Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
Pink Granite (Alkali Feldspar Granite)
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8)
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Banded Agate (specifically shades of Carnelian Agate)
Silicon Dioxide (SiO2)
Moss Agate
Silicon Dioxide (SiO2) with mineral inclusions of hornblende or chlorite
Quartz (specifically Clear Quartz with iron/hematite staining)
Silicon Dioxide (SiO2)
Agate (specifically Carnelian or Honey Agate)
Silicon Dioxide (SiO2)
Green Druzy Quartz (Prasiolite)
Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Turquoise (Rough Specimens)
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Moss Agate
Silicon Dioxide (SiO2) with inclusions of hornblende, chlorite, or manganese/iron oxides
Citrine
Quartz (SiO₂) variety
Amethyst
Quartz (SiO2) variety
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
Milky Quartz
Quartz (Silica / Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (specifically Flint or Dark Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Aventurine (specifically Green Aventurine)
Silicon Dioxide (Quartz) with inclusions of Fuchsite; SiO2 + K(Al,Cr)2AlSi3O10(OH)2
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Iron inclusions)
Pink Granite (Water-worn Cobble)
Granite (Alkali-feldspar granite)
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (specifically Milky Quartz or Quartzite)
Silicon Dioxide (SiO2)
Milk Quartz (Tumbled Pebble)
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky or Smoky variety)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2)
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2)
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)