Quartz (Milky or Yellow/Citrine Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz (Milky or Yellow/Citrine Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Larimar
NaCa2Si3O8(OH)
Yellow Jasper
Silicon dioxide (Microcrystalline quartz, SiO2)
White Quartz
Silicon Dioxide (SiO2)
Amazonite
Amazonite (KAlSi3O8)
Quartz
Silicon Dioxide (SiO2)
Black tourmaline (schorl)
Schorl, a sodium–iron borosilicate: NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Amethyst beads
Amethyst, purple quartz (SiO₂)
Quartz
SiO2
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicate mineral - SiO2)
Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation
SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Agate
SiO2
Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2)
Polished carnelian (red-orange chalcedony)
Chalcedony, microcrystalline quartz (SiO₂), colored by iron oxides
Polished banded jasper (likely red jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides; exact variety uncertain
Quartz
Silicon Dioxide (SiO2)
Quartz-rich pegmatite
Granitic pegmatite; primarily quartz (SiO₂), with feldspar and mica, plus possible iron-oxide staining
Carnelian
Silicon Dioxide (Chalcedony variety)
Faceted pale pink gemstone ring, likely morganite or rose quartz
Morganite: pink beryl, Be₃Al₂Si₆O₁₈; alternatively quartz, SiO₂
Bloodstone
Chalcedony (Variety Heliotrope)
Pyrite
Iron Disulfide (FeS2)
Likely tumbled orange carnelian
Carnelian, orange chalcedony (microcrystalline quartz, SiO₂)
Tumbled brown jasper
Microcrystalline quartz (SiO₂), commonly called jasper when opaque and colored by impurities
Bronzite
Enstatite (var. Bronzite), (Mg,Fe)SiO3
Likely rough yellow-green gemstone, possibly peridot
Peridot (gem-quality olivine), (Mg,Fe)₂SiO₄ — identification is uncertain from the photo
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz
Quartz (Silicon Dioxide, SiO2)
Amazonite
K(AlSi3O8) - Microcline
Quartz-bearing pegmatite, possibly with mica
Granitic pegmatite; chiefly quartz (SiO₂) and feldspar, with probable mica and dark accessory minerals
Citrine
Silicon Dioxide (Quartz variety), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Jasper
SiO2