Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Category
Browse mineral_rock specimens identified by the Rock Identifier community.
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Milky Quartz
Silicon dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Dyed Pink Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial dye additives
Quartz (worked as a tool or artifact)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) - variety Jasper
Agate (Moss or Plume Agate variety)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Garnet and Quartz
Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Na8(Al6Si6O24)Cl2
Orca Agate
Chalcedony (Microcrystalline Quartz, SiO2)
Rose Quartz
Silicon dioxide (SiO2) with trace titanium, manganese, or iron
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
Granite (specifically Pink Granite)
Phaneritic Plutonic Rock (High Potassium Feldspar Granite)
Dalmatian Jasper
Peralkaline rhyolite
Chert (Chert Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (variable SiO2 composition)
Granite
Granite (phaneritic intrusive igneous rock consisting of quartz, feldspar, and mica)
Carnelian (Orange Agate)
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky Variety)
Silicon Dioxide (SiO2)
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Quartz (Milky/Smoky variety on matrix)
Silicon Dioxide (SiO2)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Eye Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2 + Manganese/Iron oxides)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Gold Nugget
Native Gold (Au)
Chalcedony (Agate/Carnelian precursor)
Chalcedony (Silicon Dioxide, SiO2)
Bull Quartz
Quartz (Silicon Dioxide - SiO2)
Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)