Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Pink Granite
Granite (High K-Feldspar variety)
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
Quartz Geode
Silicon Dioxide (SiO2) within a secondary sedimentary structure
Jasper with Chert
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Orange Quartz (or Tumbled Carnelian)
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Sandstone
Arenite (primarily Quartz, SiO2, with Iron Oxide cementing agent)
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide with trace inclusions of dumortierite, Al7(BO3)(SiO4)3O3)
Turquoise (Dyed Howlite or Magnesite imitation)
Hydrated phosphate of copper and aluminum / CuAl6(PO4)4(OH)8·4H2O
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Blue Quartzite (Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
Blue Aventurine
Quartzite with Dumortierite inclusions (SiO2)
Jasper
Chert (Silica: SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Moonstone
Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8
Diamond
Diamond (pure native carbon, C)
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO₂)
Citrine
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Fairburn Agate
Cryptocrystalline Quartz (SiO2)
Fluorite (Purple variety)
Calcium Fluoride (CaF2)
Rhodochrosite
Manganese carbonate (MnCO3)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Satin Spar Gypsum
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Fluorite
Calcium Fluoride (CaF2)
Peach Selenite / Orange Gypsum
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
Dendritic Agate (Tumbled)
Silicon Dioxide (SiO2) with inclusions
Green Calcite
Calcium Carbonate (CaCO3)
Fluorite
Calcium Fluoride (CaF2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Agate (Agatized Geode Slice)
Silicon Dioxide (SiO₂)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)