Pegmatite
Granitic Pegmatite
igneous
Category
Organic Gemstone (Not A Rock Or Mineral In The Traditional Sense, But Bio Mineralized Material)
Browse organic gemstone (not a rock or mineral in the traditional sense, but bio mineralized material) specimens identified by the Rock Identifier community.
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Beryl (likely Aquamarine or Green Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Rose Quartz
Rose Quartz (SiO2 with inclusions of Dumortierite)
mineral
Green Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Inclusions
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Banded Agate (specifically Lake Superior Agate style)
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Garnet (Almandine)
Almandine Fe3Al2(SiO4)3
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Tiger's Eye
SiO2 (Silicon Dioxide) with fibrous crocidolite inclusions
mineral
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Tanzanite
Blue Zoisite (Ca2Al3(SiO4)3(OH))
mineral
Mica Schist
Mica Schist (primarily Muscovite and/or Biotite composition)
metamorphic
Pearl
Biogenic CaCO3 (Aragonite)
mineral
Sandstone
Arenite
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Kyanite
Kyanite (Al2SiO5)
metamorphic
Labradorite (Carved)
(Ca, Na)(Al, Si)4O8
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Prase quartz with actinolite inclusions
Silicon dioxide (SiO2) with Calcium Magnesium Iron Silicate Hydroxide inclusions
mineral
Carnelian (Carnelian Agate)
Silicon dioxide (SiO2)
mineral
Sunstone
(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Obsidian
Obsidian (Volcanic Glass)
igneous
Chalcedony (Botryoidal/Chalcedony Rose)
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz chunk
Silicon dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral