Black Sapphire (Basaltic Blue Sapphire)
Corundum (Al2O3)
Category
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Black Sapphire (Basaltic Blue Sapphire)
Corundum (Al2O3)
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
Green Aventurine (Tumbled Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Sandstone
Arenite (SiO2 with various cementing agents)
Citrine
Citrine (Silicon Dioxide - SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
Chert (varietal Chalcedony or Flint)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions
Banded Agate (Dyed Purple)
Agate (Variety of Chalcedony/Quartz), SiO2
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Clastic Sedimentary Rock (primarily SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Green Aventurine (Quartz)
SiO2 (Silicon Dioxide with Fuchsite inclusions)
Sandstone
Arenite
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
Red Cubic Zirconia (Simulated Garnet)
Zirconium Dioxide (ZrO2)
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Quartz (Aventurine)
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Green Aventurine
Quartzite (variety Aventurine) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Amber
Succinite (fossilized tree resin)
Sandstone
Arenite (primarily SiO2)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite mica
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Chert (Chert / Flint Variety)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)