Polished Tumbled Stone (Dark Chalcedony / Jasper)
Silicon Dioxide (SiO2)
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Polished Tumbled Stone (Dark Chalcedony / Jasper)
Silicon Dioxide (SiO2)
Quartz (Quartzite / Iron-stained Quartz)
Silicon Dioxide (SiO2)
Agate Pebble (Desert Agate / Chalcedony Nodule)
Silicon Dioxide (SiO2)
Yellow Chalcedony (or Yellow Jasper / Agate)
Silicon Dioxide (SiO2)
Quartz Pebble (Beach Chalcedony)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Goethite
Heat-Treated Amethyst (Citrine Geode)
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon Dioxide (SiO2)
Green Aventurine
Quartz variety with fuchsite inclusions (SiO2)
Larimar (Slab)
Pectolite [NaCa2Si3O8(OH)]
Black Onyx
Silicon Dioxide (SiO2) with layered chalcedony
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Brown Chalcedony (Agate/Jasper)
Cryptocrystalline Quartz (SiO2)
Diamond (Cullinan Heritage)
Carbon (C)
Quartz Pebble
Silicon Dioxide (SiO2)
Amazonite
Microcline (KAlSi3O8) with trace lead (Pb)
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
Aventurine
Silicon dioxide (Quartz) with inclusions (KAl2(AlSi3O10)(OH)2)
Slag Glass (Leland Blue variant)
Anthropogenic Vitreous Silicate
Carnelian
SiO2 (Silicon Dioxide) with Ferric Oxide inclusions
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon dioxide (SiO2)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Labradorite (Gray Moonlight variation)
(Ca, Na)(Al, Si)4O8
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Aura Quartz (Titanium/Bismuth Coated)
Silicon Dioxide (SiO2) with metallic vapor coating
Rose Quartz
Silicon dioxide (SiO2)
Diamond (or Diamond Simulant)
Carbon (C)
Citrine
Silicon dioxide (SiO2)
Gold Placer (Gold Flakes and Nuggets)
Native Gold (Au)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Rough Diamond
Diamond (C)
Quartz Pebble
Silicon Dioxide (SiO2)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)
Pink Opal
Hydrated silica (SiO2 "n H2O)
Black Onyx
Silicon dioxide (SiO2)
Chalcedony (Common Agate pebble)
Silicon Dioxide (SiO2)
Amethyst Geode
Silicon Dioxide (SiO2) - Amethyst variety of Quartz