Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Category
Browse mixed (predominantly sedimentary and igneous) specimens identified by the Rock Identifier community.
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Chalcopyrite in Matrix
Chalcopyrite (CuFeS2)
Rose Quartz
Silicon dioxide (SiO2)
Soapstone / Steatite
Steatite (primarily Talc, Mg3Si4O10(OH)2)
Rose Quartz
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
Labradorite
(Ca, Na)(Al, Si)4O8
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Rose Quartz (Aura Quartz)
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Geode (unopened)
Silica-filled Concretion (SiO2)
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Sandstone
Arenite (primarily SiO2)
Chondrite Meteorite
Ordinary Chondrite (OC)
Sodalite-rich Syenite (Sunset Sodalite)
Sodalite-Syenite (Na8[Al6Si6O24]Cl2 with KAlSi3O8)
Smoky Quartz on Feldspar (Granite Pegmatite)
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (KAlSi3O8)
Sodalite
Sodalite: Na8(Al6Si6O24)Cl2
Diamond
Native Carbon (C)
Quartz with Mica/Chlorite inclusions
Silicon Dioxide (SiO2) with phyllosilicate inclusions
Thunderegg (Ate Agate/Jasper Geode)
Silicon Dioxide (SiO2) within Rhyolite/Perlite matrix
Schorl (Black Tourmaline) in Quartz or Feldspar Matrix
NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl) in Granitic Pegmatite
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide impurities
Banded Agate
Silicon Dioxide (SiO2)
Blue Quartz
Quartz (Silicon Dioxide) with blue inclusions (SiO2)
Smoky Quartz
Silicon Dioxide (SiO₂)
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
Biotite Mica in Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Gold Placer (Gold Flakes and Nuggets)
Native Gold (Au)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe oxides)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Quartz on Chlorite Schist
Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)