Orthoclase (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Category
Man Made Mineral Simulant (Glass)
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Learn about Man Made Mineral Simulant (Glass) in the encyclopedia
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Polished ocean jasper / orbicular jasper
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
mineral
Sandstone (with Limonite staining)
Arenite (primarily SiO2 with FeO(OH)·nH2O)
sedimentary
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Feldspar
Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)
mineral
Quartz (Peach/Orange)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))
mineral
Blue Sapphire
Corundum (Al2O3)
mineral
Fluorite and Mineral Collection
Calcium Fluoride (CaF2)
mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Chert (Agate / Jasper pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Agate (Dyed or Treated Chalcedony)
Silicon Dioxide (SiO2), microcrystalline quartz variety
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Diamond (or Lab-Grown Cubic Zirconia)
Carbon (C)
mineral
Milky Quartz with inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Obsidian (Volcanic Glass, SiO2)
igneous
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Rose Quartz Beads
Silicon Dioxide (SiO2) - Quartz Variety
mineral
Red aventurine
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
metamorphic
Muscovite Mica
Muscovite (Potassium Aluminum Silicate) - KAl2(AlSi3O10)(F,OH)2
mineral
Milky quartz-bearing rock, possibly quartzite
Quartz (SiO₂), likely in a quartzite or quartz-rich metamorphic matrix
metamorphic
Muscovite Mica (with Quartz matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)
Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian/chalcedony rough
Microcrystalline quartz (SiO₂), iron-oxide-colored chalcedony
mineral
Clear Quartz Sphere
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon dioxide (SiO2) with trace impurities of titanium, iron, or manganese
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Gravel variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral