Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Category
Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites)
Browse industrial byproduct (often confused with igneous rocks or meteorites) specimens identified by the Rock Identifier community.
Learn about Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites) in the encyclopedia
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Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Green Quartz (Prasiolite)
Crystalline Silicon Dioxide (SiO2)
mineral
Agate
Chalcedony (SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
Mineral
Milky Quartz with Chlorite/Iron staining
Silicon Dioxide (SiO2) with inclusions
mineral
Desert Rose
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Pyrite
Iron Pyrite (FeS2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Agate
Silicon dioxide (chalcedony variety), SiO2
sedimentary
Mossy Rock
Mixed lithology rock with Bryophyta (moss)
sedimentary
Labradorite/Larvikite
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Chert (varieties: Flint, Jasper)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Green Gneiss
Metamorphic Gneiss
metamorphic
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Siltstone or Fine-grained Sandstone pebble
Siltstone (primarily SiO2 with clay minerals)
sedimentary
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Polished Basalt
Basalt (Mafic volcanic rock)
Igneous
Pink quartz bead strand (likely rose quartz or pink dyed quartz)
Quartz, silicon dioxide (SiO₂); probable rose quartz variety, possibly dyed or treated quartz/chalcedony
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Tumbled prehnite (probable)
Prehnite — Ca₂Al(AlSi₃O₁₀)(OH)₂
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled Amethyst
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss
metamorphic
Fluorite
Calcium Fluoride (CaF2)
mineral