Milky Quartz / Rose Quartz fragment
Silicon Dioxide (SiO2)
mineral
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
Quartz Geode Fragment
Silicon Dioxide (SiO2) in a Sedimentary Host
mineral
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
mineral
Green Quartz (Prasiolite/Adventurine/Jasper)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Malachite
Malachite, Cu2(CO3)(OH)2
Mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Satin Spar Selenite
Gypsum (CaSO4·2H2O)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Indigo Gabbro
Gabbro (Mafic Intrusive Rock)
igneous
Quartz (Milky or Druzy variety)
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic plutonic felsic rock (Quartz, Feldspar, Mica)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Satin Spar (often marketed as Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Pink Granite
Granite (rich in Potassium Feldspar/Orthoclase)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Granite
Plutonic Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Abalone Shell (Mother of Pearl)
Aragonite (Biogenic Calcium Carbonate, CaCO3)
mineral
Banded Agate (Tumbled)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
mineral
Fluorite (often referred to as Rainbow Fluorite)
Fluorite (Calcium Fluoride, CaF2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz / Common Agate
Silicon Dioxide (SiO2)
mineral
Red Quartzite
Quartzite (SiO2)
metamorphic
Granite
Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica/Amphibole)
igneous
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic