Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Chert / Flint
Chert (Silicon Dioxide, SiO2)
Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)
Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)
Pyrite
Iron Sulfide (FeS2)
Orca Agate (Chalcedony)
Silicon Dioxide (SiO2) with inclusions
Carnelian (Carnelian Agate)
Carnelian (Silicon Dioxide - SiO2)
Iceland Spar (Optical Calcite)
Calcite (CaCO3)
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
Quartzite
Quartzite (SiO2)
Granitic Pegmatite with Biotite
Pegmatitic Granite (contains KAlSi3O8, SiO2, K(Mg,Fe)3AlSi3O10(OH)2)
Chert (varieties: Flint or Jasper)
Microcrystalline Quartz (SiO2)
Black Tourmaline (Schorl)
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Serpentine, likely a variety of Chrysoprase (green chalcedony) or a similar translucent green mineral.
Serpentine Group Minerals (e.g., Antigorite, Lizardite) or Chalcedony (SiO2) with nickel impurities for Chrysoprase green.
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (specifically Green Chert/Jasper)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz / Quartz Cluster
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Aventurine (Tan/Cream colored)
Quartz (SiO2) with mineral inclusions
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Gold Ore in Quartz/Schist
Auriferous Quartz and Sulfide-bearing Schist
Red Sandstone
Arenite (Ferruginous Sandstone)
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with inclusions of Dumortierite or similar minerals
Yellow Jasper (Limonite-stained Chert)
Silicon Dioxide (SiO2) with Limonite/Goethite inclusions
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Riverstone Jasper (Chert variant)
Silicon Dioxide (SiO2)
Quartz with Arsenopyrite
Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)
Pegmatite (Granitic)
Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)
Gneiss
Gneiss
Blue Quartz (specifically Dumortierite Quartz)
SiO2 (Silicon Dioxide) with inclusions of AlAl6BSi3O18 (Dumortierite)
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Orange Calcite
Calcium Carbonate (CaCO3)
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)