Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Ruby (Raw Corundum)
Corundum (Al2O3 with Chromium impurities)
Quartz (Chatoyant or Milky variety)
Silicon Dioxide (SiO2)
Small rounded pebble, likely quartz-rich stone
Indeterminate from photograph; possibly microcrystalline quartz (SiO₂) or a weathered silicate pebble
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Tiger's Eye
Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (variety of Microcline)
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Raw / Unpolished)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Tumbled amethyst
Quartz, purple variety; silicon dioxide (SiO₂), colored mainly by iron impurities and irradiation
Carnelian (Carnelian Agate)
Silicon Dioxide (SiO2) - variety of Chalcedony
Tumbled Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Mixed Gemstones and Minerals
Mixed Silicates and Oxides (Quartz/Amethyst, Aventurine, Sodalite, Chert, Jasper)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Amazonite
Amazonite (K[AlSi3O8])
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
Red Jasper
Silicon Dioxide (SiO2) with Ferric Oxide inclusions
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Blue Lace Agate
Silicon Dioxide (SiO2)