Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Potassium Feldspar
K-Feldspar (Orthoclase/Microcline) KAlSi3O8
Carnelian (a variety of Chalcedony)
Silicon dioxide (SiO2) with iron oxide impurities
Pyrite
Iron Sulfide (FeS2)
Agate (specifically a Banded Agate with a Quartz Druzy center)
Silicon Dioxide (SiO2)
Quartz Crystal (Citrine / Golden Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Kunzite (variety of Spodumene)
Lithium Aluminum Silicate (LiAlSi2O6)
Garnet (Almandine variety)
Almandine Garnet (Fe3Al2(SiO4)3)
Quartz
Silicon Dioxide (SiO2)
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
Tumbled ruby-bearing corundum
Corundum (Al₂O₃), likely ruby variety
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Jasper
Silicon dioxide (SiO2)
Pink Tourmaline in Quartz Matrix
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)
Jasper (likely Ocean Jasper or Variegated Jasper)
Silicon Dioxide (SiO2) with impurities
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Quartz
Silicon Dioxide (SiO2)
Banded Agate (Dyed)
SiO2 (Silicon Dioxide / Microcrystalline Quartz)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Tiger's Eye (specifically Blue Tiger's Eye / Falcon's Eye)
Pseudomorph of Quartz after Crocidolite (SiO2)
Green Aventurine and Clear Quartz Bracelet
Quartz variety with Fuchsite inclusions (Aventurine) and pure Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Blue Sapphire and Diamond (Set in Metal)
Corundum (Al2O3) and Diamond (C)
Quartz (with Sandstone/Quartzite rocks)
Silicon Dioxide (SiO2)
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8 (Potassium Aluminum Silicate)
Citrine
Silicon Dioxide (SiO2) - Yellow Quartz variety
Amazonite
Amazonite (KAlSi3O8); a green variety of Microcline feldspar
Pyrite
Iron Disulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Milk Quartz (or Milky Quartz)
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)