Quartzite Cobble
Quartzite (SiO2)
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Quartzite Cobble
Quartzite (SiO2)
Basalt
Extrusive mafic igneous rock
Quartzite Cobble
Quartzite (composed primarily of SiO2)
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock (Basalt)
Granite with Quartz Vein
Phaneritic intrusive igneous rock (Felsic)
Scoria
Vesicular Basalt / Scoria (Mafic silicate rock)
Epidote
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Andesite River Cobble
Andesite (Intermediate Volcanic Rock)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz pebble
Silicon Dioxide (SiO2)
Quartz (Milky or Iron-Stained)
Silicon Dioxide (SiO2)
Native Copper
Native Copper (Cu)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite
Pyrite (FeS2)
Chalcopyrite in Matrix
Chalcopyrite (CuFeS2)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Rough Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Granite (Orthoclase rich)
Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)
Basalt with Quartz/Feldspar Inclusions
Amygdaloidal or Porphyritic Mafic Volcanic Rock with Siliceous Veining
Diamond
Native Carbon (C)
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Gold-bearing Quartz
Quartz (SiO2) with associated pyrite or native gold
Milky Quartz
Silicon Dioxide (SiO2)
Yellow Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions
Ferruginous Quartz (Iron-Stained Quartz)
Quartz (Silicon Dioxide) with Iron Oxide inclusions (SiO2 + Fe2O3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Native Copper
Native Copper (Cu)
Nephrite Jade (River Cobble)
Nephrite (Silicate mineral: Ca2(Mg, Fe)5Si8O22(OH)2)
Milky Quartz (Water-Worn Pebble)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz Cobble
Silicon Dioxide (SiO2)
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Rock Crystal Quartz Pebble
Silicon Dioxide (SiO2)
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Quartz Cobble (with Iron Staining)
Silicon Dioxide (SiO2)
Quartz
SiO₂ (Silicon Dioxide)
Granite
Phaneritic Plutonic Rock (Granite)
Scoria (Lava Rock)
Scoria (Vesicular Basaltic Rock)