Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
mineral
Category
Man Made Glass (Not A Natural Rock Or Mineral)
Browse man made glass (not a natural rock or mineral) specimens identified by the Rock Identifier community.
Sandstone (with Iron Oxide)
Arenite with Limonite/Hematite staining
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Rose or Clear variety)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz (part of a Geode)
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate (Geode/Druzy variant)
Chalcedony (SiO2) with Quartz druzy
mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Dumortierite Quartz (Blue Quartz)
Al7BO3(SiO4)3O3 (Aluminum Boro-silicate included in Quartz)
mineral
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
mineral
Quartz (Specifically Clear to Smoky Quartz point)
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
sedimentary
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Mineral in Igneous/Sedimentary host
Rough Quartz in Pegmatite Matrix
Quartz (Silicon Dioxide - SiO2) in Granitic Pegmatite
igneous
Aragonite (specifically Mexican Marbled Onyx)
Aragonite (Calcium Carbonate, CaCO3)
mineral
Sandstone (Quartzite-rich Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Bull Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Agate (Moss or Plume Agate variety)
Silicon Dioxide (SiO2)
mineral
Basalt with Weathered Surface
Basalt
Igneous
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4 in Vesicular Basalt
igneous
Iron-stained Quartz (Gossan/Limonite-coated Quartz)
Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Metamorphic Rock / Mineral
Quartzite with Hematite staining
Quartzite (SiO2) with iron oxide inclusions
metamorphic
Turquoise (Blue Howlite / Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (for natural Turquoise); Ca2B5SiO9(OH)5 (for Howlite)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Sandstone (with biological crust)
Arenite (SiO2 based)
sedimentary
Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Pearl (with Peridot)
Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4
mineral