Quartzite
Quartzite (SiO2)
Category
Browse mineral (evaporite) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
Fossilized Shark Teeth
Carcharhiniformes or Lamniformes species (common mineral: Fluorapatite/Ca5(PO4)3F)
Gneiss
Gneiss
Serpentinite (often containing Jadeite/Nephrite)
Antigorite-rich Serpentine Rock, (Mg, Fe)3Si2O5(OH)4
Granite
Phaneritic Felsic Igneous Rock
Chert Pebble (Jasper/Quartz variety)
Microcrystalline Quartz (SiO2)
Quartzite Pebble
Metamorphic Quartz-rich Rock (SiO2)
Basalt (Amygdaloidal)
Amygdaloidal Basalt
Schist
Mica Schist
Schist
Mica Schist
Granite
Granite (Mainly SiO2 and Al2O3)
Granitic Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)
Pegmatite
Granitic Pegmatite
Foliated Gneiss
Gneiss (Metamorphic Rock)
Gneis
Gneiss (High-grade metamorphic rock)
Granite
Granite (phaneitic intrusive igneous rock)
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Gneiss
High-grade Metamorphic Gneiss
Gneiss
Gneiss (High-grade Metamorphic Rock)
Fossilized Shark Tooth (Partial)
Elasmobranchii (fossil tooth fragment)
River Quartzite Slik
Quartzite (SiO2)
Gneiss
Gneiss
Granite
Intrusive igneous rock (Acidic)
Greenstone / Graywacke
Metagraywacke or Chlorite Schist
Amygdaloidal Basalt with Quartz/Zeolite Infill
Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)
Gneiss (specifically Biotite Gneiss)
Gneiss (high-grade metamorphic rock primarily composed of Silicates)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide Fe2O3 cement)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Hematite Beads
Hematite (Fe2O3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz Geode
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
Pyrite
Iron Disulfide (FeS2)
Granite
Granite (a felsic intrusive igneous rock)
Pumice
Pumice (volcanic rock)
Granite
Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)
Conglomerate
Conglomerate
Porphyritic Basalt
Porphyritic Basalt (Silicate Rock)
Basalt with Quartz Veins
Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene) with SiO2 inclusions
Granite
Granite (composed of Quartz, Feldspar, and Mica)