Basalt
Basalt (primarily composed of Plagioclase Feldspar and Pyroxene)
igneous
Category
Organic Gem Material (Botanical)
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
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Amber
Succinite (Fossilized Resin)
mineral
Sandstone Concretion
Limonitic Sandstone Concretion
sedimentary
Amber
Succinite (Fossilized Resin)
mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2 with Hematite impurities)
Mineral
Geode (Unopened)
Siliceous Concretion / Geode
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amber in Matrix
Succinite (Carbon-based organic polymer)
Organic (Sedimentary context)
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
sedimentary
Amber
Succinite
mineral
Fossil Shark Tooth (Sand Tiger or Mackerel Shark)
Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate
sedimentary
Amber
Succinates (Organic Fossilized Resin)
mineraloid
Black Pearl (Tahitian-style Cultured Pearl)
Calcium Carbonate (Aragonite) with Conchiolin (CaCO3)
mineral
Granite
Granite
Igneous
Turquoise and Red Coral (with Grizzly Bear Claw)
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Precious Coral (Corallium rubrum)
mineral
Amethyst (Tumbled)
Amethyst (Silicon Dioxide with Iron impurities) - SiO2
mineral
Greenstone (Epidosite)
Epidosite (Metamorphosed Basalt/Diabase)
metamorphic
Amber
Succinicum (Organic compound, primarily C10H16O)
Organic Gemstone (Mineraloid)
Sunstone
Aventurine Feldspar (Plagioclase or Oligoclase)
mineral
Emerald / Fluorite
Beryl (Be3Al2Si6O18) / Fluorite (CaF2)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Sunstone (Feldspar variety)
Oligoclase or Andesine (Na,Ca)(Al,Si)4O8
mineral
Amethyst
SiO2 (Silicon Dioxide)
mineral
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Epidote
Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst
SiO2 (Silicon Dioxide with Fe3+ impurities)
mineral
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Garnet (specifically Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Amethyst
Silicon Dioxide with iron impurities (SiO2)
mineral
Ruby (Corundum)
Aluminum Oxide (Al2O3) with Chromium traces
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon dioxide / Quartz (SiO2+Fe4+)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amber
Succinite (fossilized tree resin)
mineral
Amber (and Cubic Zirconia)
Fossilized Tree Resin
mineraloid
Moss Agate
Silicon dioxide (SiO2) with inclusions
Mineral