Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Aluminum borate silicate)
Aventurine
Aventurine (Silicon Dioxide with Fuchsite inclusions) - SiO2
Quartz Pebble
Silicon Dioxide (SiO2)
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Porphyritic Pink Granite
Phaneritic Porphyroid Granite
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Greenschist
Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
Mica (Biotite and Muscovite) in Matrix
Potassium aluminum silicate with iron/magnesium (KAl2(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(F,OH)2)
Carnelian
Carnelian (SiO2)
Pink Granite
Granite (Phaneritic Igneous Rock)
Quartz Crystal
Silicon Dioxide (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Moqui Marble
Hematite-Goethite Concretion
Red Jasper (with Quartz)
Silicon Dioxide (SiO2) with Hematite inclusions
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Himalayan Pink Salt
Halite (NaCl) with trace minerals
Milky Quartz
Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jadeite
Jadeite (NaAlSi2O6)
Pink Granite
Granite (Alkali-feldspar granite)
Amygdaloidal Basalt
Amygdaloidal Basalt
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2)
Moonstone
Orthoclase and Albite (KAlSi3O8 / NaAlSi3O8)
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Bumblebee Jasper
Fibrous Calcite and Quartz with Volcanic Matter (CaCO3 / SiO2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Banded Carnelian
Carnelian (Silicon Dioxide / SiO2)
Tumbled Quartz (Snow Quartz)
Silicon Dioxide (SiO2)