Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (man made glass) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Iron-stained quartz-rich rock, possibly jasper or chert
Microcrystalline quartz (SiO₂) with iron oxides/hydroxides
Diamond (or Diamond Simulant)
Carbon (C) or Cubic Zirconia (ZrO2)
Chert (with Limestone matrix)
Silicon dioxide (SiO2)
Flint
Silicon dioxide (SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite
Quartz (Microcrystalline/Chert)
Silicon Dioxide (SiO2)
Blue Goldstone
Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)
Strawberry Quartz (or Pink Aventurine)
Quartz with Hematite/Goethite inclusions (SiO2)
Diamond
Carbon (C)
Diamond (in a jewelry setting)
Carbon (C)
Sea Glass (Cobalt Blue)
Amorphous Silica (Glass with Cobalt additives)
Chert (Flint)
Silicon dioxide (SiO2)
Granite
Phaneritic Felsic Igneous Rock
Corundum (Ruby variety)
Aluminium oxide (Al2O3)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Sandstone
Arenite (SiO2 primarily)
Goldstone (Synthetic Aventurescence Glass)
Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)
Sea Glass
Amorphous Silica (Glass) SiO2
Pumice
Pumice (Vesicular volcanic glass)
Chert (specifically Tan/Gray Chert)
Microcrystalline quartz (SiO2)
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Amethyst
Silicon Dioxide (SiO2)
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
Pumice
Pumice (Vitreous volcanic rock)
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
Diamond
Native Carbon (C)
Sandstone
Arenite
Green Aura Quartz
Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
Blue Chalcedony Cube
Silicon Dioxide (SiO2)
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Tektite
Impactite (Natural Silicate Glass)
Sandstone
Arenite
Slag Glass (Cullet)
Amorphous Silica / Glass residue
Diamond (as set in a gold ring)
Carbon (C)
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Fossil Sea Urchin (Echinoid)
Echinoidea fossil (often replaced by silica or calcite)