Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Category
Mineral (Gemstone Variety Of Beryl)
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Learn about Mineral (Gemstone Variety Of Beryl) in the encyclopedia
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Orange chalcedony (likely carnelian), polished shard
Microcrystalline quartz, SiO₂; chalcedony variety, orange iron-oxide coloration
gemstone
Faceted Citrine
Citrine Quartz (Silicon Dioxide, SiO2)
gemstone
Carnelian
Carnelian (Silicon Dioxide: SiO2)
mineral
Chert (Common Opal/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Black Opal
Hydrated silica (SiO2·nH2O)
mineraloid
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
igneous
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Red Jasper (River Pebble)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
sedimentary
Jasper (specifically Yellow and Red Jasper/Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
mineral
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Hematite Beads
Hematite (Fe2O3)
Mineral
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Red Jasper (possibly Orbicular Jasper)
Silicon Dioxide with inclusions (SiO2)
sedimentary
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper (Silicate Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Blue Quartzite
Quartzite (primarily SiO2) with inclusions like Dumortierite or Magnesio-riebeckite
metamorphic
Yellow Jasper
Chalcedony (SiO2 with iron oxide inclusions)
sedimentary
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Blue Agate Ring
Silicon Dioxide (Chalcedony variety Agate), SiO2
gemstone
Amethyst Cluster Pendant
Silicon Dioxide (SiO2) - Quartz variety Amethyst
gemstone
Tumbled carnelian/chalcedony
Carnelian, a reddish variety of microcrystalline quartz (SiO₂)
gemstone
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
igneous
Rainbow Moonstone with Black Tourmaline
White Labradorite with Schorl (Na,Ca)(Al,Si)4O8
mineral
Red Tiger's Eye
Silicified Crocidolite (Quartz pseudo-morph after Crocidolite), SiO2
metamorphic
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions
igneous
Moonstone
Adularia (orthoclase) or Albite (plagioclase), a feldspar mineral (KAlSi3O8 or NaAlSi3O8 respectively, often a mixture)
mineral
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Snowflake Obsidian
Spherulitic Obsidian (SiO2 + impurities)
igneous
Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Rough Garnet in Matrix
Almandine Garnet (Fe3Al2Si3O12)
mineral
Tourmalinated Quartz
SiO2 with NaFe3+3Al6(BO3)3Si6O18(OH)4 inclusions
Mineral