Sandstone
Arenite (SiO2 primarily)
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 primarily)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz in Matrix
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
Chert (Flint)
Microcrystalline quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Vein Rock
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Sandstone with Iron Staining
Clastic sedimentary rock (SiO2 with iron oxides)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Quartz and Limestone Grouping
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
Amber
Succinate (Fossilized Tree Resin)
Quartz pebble
Silicon dioxide (SiO2)
Tumbled green aventurine (likely)
Quartz, SiO₂, containing green fuchsite mica or other inclusions
Milk Quartz (Vein Quartz)
Quartz (Silicon Dioxide, SiO2)
Agated Chert
Microcrystalline Quartz (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Snowflake Obsidian
Vitreous Volcanic Rock (Amorphous Silicate), SiO2
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Pink/Orange Variety)
Silicon Dioxide (SiO2)
Weathered gray-green pebble
Indeterminate; possibly altered basalt, serpentinite, or a greenish metamorphic rock
Quartz / Chalcedony Pebble
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Sandstone
Arenite (primarily SiO2)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2AlSi3O10(OH)2
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Quartz (Milky/Clear Variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Obsidian
Volcanic glass
Smoky Quartz
Silicon Dioxide (SiO2)
Carved quartz skull
Quartz (silicon dioxide, SiO₂)
Sandstone or Weathered Conglomerate
Sedimentary Rock (Quartzose Sandstone / Lithic Arenite)