Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Category
Man Made Glass (Often Grouped With Minerals In Lapidary)
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
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Chert (Nodule)
Chert (SiO2)
sedimentary
Biotite on Quartz Matrix
Biotite - K(Mg,Fe)3(AlSi3O10)(OH,F)2 with Quartz (SiO2)
mineral
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
igneous
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Geode (Unopened)
Quartz Geode (SiO2) / Chalcedony Concretion
mineral
Garnet (specifically Almandine)
Almandine - Fe3Al2(SiO4)3
metamorphic
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Chert (Microcrystalline Quartz)
sedimentary
Tumbled Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
mineral group
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphic Quartz Sandstone
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Non-geological
Jasper (Iron-rich Chalcedony)
Jasper (Microcrystalline Silicon Dioxide, SiO2 plus iron oxide impurities)
Sedimentary / Metamorphic
Mica
Muscovite / Biotite (Phyllosilicate group)
mineral
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 with Limonite/Hematite impurities)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (specifically sublithic or quartz arenite)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Moonstone
Orthoclase Feldspar (KAlSi3O8)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amethyst quartz cluster
Quartz, SiO₂; purple variety colored mainly by iron impurities and irradiation
mineral
Garnet in Matrix
Almandine or Pyrope Garnet (X3Y2(SiO4)3) in Schist or Eclogite matrix
metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Serpentine
Serpentine group (e.g., Antigorite, Chrysotile, Lizardite) - (Mg,Fe)3Si2O5(OH)4
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz with Nephrite Jade
Silicon Dioxide (SiO2) with Ca2(Mg,Fe)5Si8O22(OH)2
mineral/metamorphic
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Synthetic / Textile
Quartz (Golden Quartz / Citrine / Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Quartz (Milky or Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic