Carnelian
SiO2 (Silicon Dioxide) - Carnelian variety of Chalcedony
mineral
Category
Organic Gemstone (Not A Rock)
Browse organic gemstone (not a rock) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Obsidian (Volcanic Glass)
igneous
Amethyst
Amethyst (Silicon Dioxide - SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Yellow Aventurine
Quartz (Silicon Dioxide) with Mica inclusions (SiO2)
mineral
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amazonite
Amazonite (Microcline) - K(AlSi3O8)
mineral
Carnelian
Carnelian (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Prase quartz with actinolite inclusions
Silicon dioxide (SiO2) with Calcium Magnesium Iron Silicate Hydroxide inclusions
mineral
Blue Kyanite
Kyanite (Al2SiO5)
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper (Chert)
Silicon Dioxide (SiO2)
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite with Smoky Quartz and Feldspar
Microcline (KAlSi3O8) with Quartz (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (Silica, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartzite Pebble
Quartzite (SiO2 with Iron Oxide staining)
metamorphic
Moonstone
Orthoclase feldspar ((K,Na)AlSi3O8)
mineral
Potassium Feldspar (Orthoclase)
KAlSi3O8
mineral
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Tanzanite
Blue Zoisite (Ca2Al3(SiO4)3(OH))
mineral
Diamond in Kimberlite
Diamond (C in Kimberlite)
igneous
Jasper
Silicon dioxide (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
igneous
Green Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Amazonite
Microline Feldspar (KAlSi3O8)
mineral