Gemstone Sand (Mineral Assortment)
Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)
Category
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Gemstone Sand (Mineral Assortment)
Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride) - Na8(Al6Si6O24)Cl2
Hematite
Iron(III) oxide (Fe2O3)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Quartz Vein Outcrop
Silicon Dioxide (SiO2)
Blue Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Quartz Pebble (Iron-Stained)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Petrified Wood
Silicified wood (primarily SiO2 - Silicon Dioxide)
Chalcedony (Botryoidal or Tumbled)
Chalcedony (SiO₂)
Chert (specifically Blue Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Limonite (Oxidized Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
Diamond
Carbon (C)
Chalcedony (Botryoidal or Agate nodule)
Silicon Dioxide (SiO2)
Diamond (Princess Cut Gemstone)
Carbon (C)
Diamond
Diamond (pure Carbon, C)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Diamond
Diamond (pure Carbon, C)
Sandstone (Red)
Arenite (Fe2O3 heavy)
Sandstone (Quartz-rich)
Arenite (SiO2)
Sandstone
Arenite (Clastic Sedimentary Rock)
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone (Ferruginous)
Arenite (with Goethite/Limonite cement)
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Biotite (Mica)
Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily composed of SiO2 - Silicon Dioxide)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz
Quartz (SiO₂)
Scoria (Basaltic Lava Rock)
Vesicular Basalt
Lepidolite on Pegmatite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Granitic Pegmatite
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Quartz (Microcrystalline variety)
Silicon Dioxide (SiO2)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Arenite (composed primarily of SiO2)
Dendritic Agate (or Dendritic Opal)
SiO2 (for Agate), SiO2·nH2O (for Opal)