Black Onyx
Silicon Dioxide (SiO2)
mineral
Category
Mineral; Variety Of Quartz
Browse mineral; variety of quartz specimens identified by the Rock Identifier community.
Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Chert Pebble (Jasper/Quartz variety)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Aventurine
Silicon Dioxide (SiO2) with inclusions of Dumortierite
Mineral (silicate variety)
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Jasper Beach Pebble
Silicon Dioxide (SiO2) - Macro-crystalline Quartz
sedimentary
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Lake Superior Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Red Jasper
Jasper (SiO2 with Fe2O3 inclusions)
sedimentary
Aventurine (likely Green Aventurine)
Aventurine (a variety of quartz, SiO₂, with common inclusions of fuchsite)
Mineral/Metamorphic Rock
Agatized Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
sedimentary
Banded Calcite (Mexican Onyx)
Calcite (Calcium Carbonate, CaCO3)
mineral
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
mineral
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Rose Quartz
Rose Quartz (SiO₂)
Mineral
Fuchsite on Quartzite
Muscovite (Chromium-bearing) K(Al,Cr)2(AlSi3O10)(OH)2
metamorphic
Fancy Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Jasper (Milky/Cream Variety)
Silicon Dioxide (SiO2) - variety of Chalcedony
sedimentary (chemical/biological)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Pink/Orange Variety)
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (SiO2)
mineral
Ametrine
Ametrine (SiO2 - Silicon Dioxide with trace amounts of Iron)
mineral
Orthoclase Feldspar (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Banded Agate / Lace Agate
Agate (Silica/Quartz) - SiO2
mineral
Jasper (brecciated or orbicular variety)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary/mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (SiO₂)
Mineral
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz
sedimentary
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Red Jasper
Red Jasper (variety of Chalcedony, SiO₂)
Mineral
Blue Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
sedimentary
Granite (Pink/Red variety)
Phaneritic Felsic Intrusive Igneous Rock (composed primarily of Quartz, K-Feldspar, and Plagioclase)
igneous
Raw Emerald
Beryl (Be3Al2(SiO3)6) with Cr/V impurities
mineral
Quartz (Small fragments)
Silicon Dioxide (SiO2)
mineral
Jasper with Iron Staining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary