Green Aventurine
Aventurine (Silicon Dioxide with Fuchsite inclusions - SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Category
Synthetic Or Natural Fiber
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Pink Tourmaline in Quartz Matrix
Elbaite (Na(Li,Al)3Al6(Si6O18)(BO3)3(OH)4) in Quartz (SiO2)
mineral
Green Aventurine (Fuchsite-bearing Quartzite)
Silicon Dioxide (SiO2) with Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
mineral
Crackle Quartz (Dyed)
SiO2 (Silicon Dioxide) - Treated
mineral
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Mineral (Variety of Quartz)
Amethyst
SiO2 (Amethyst is a variety of Quartz)
mineral
Pink Dyed Agate (Banded Chalcedony)
Silicon dioxide (SiO2) - variety Chalcedony
mineral
Turquenite (Dyed Howlite)
Dyed Ca2B5SiO9(OH)5 (Calcium Borosilicate Hydroxide)
mineral
Dyed Howlite (simulating Lavender/Purple Jade or Charoite)
Howlite: Ca2B5SiO9(OH)5 (when natural)
Mineral
Yooperlite (Sodalite-bearing Syenite)
Fluorescent Sodalite-bearing Syenite
igneous
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Coquina / Shelly Limestone
Bioclastic Limestone (composed of CaCO3)
sedimentary
Amethyst
Silicon Dioxide with trace inclusions of Iron (SiO2)
mineral
Sandstone (with Iron Staining)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Blue Topaz (facetted in jewelry)
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
mineral
Pearl
Organic gemstone (Calcium carbonate / CaCO3 + Conchiolin)
mineral
Quartz (Milky or Smoky Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Breccia
Breccia (Clastic sedimentary rock)
sedimentary
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Bismuth Crystal
Bismuth (Bi)
mineral
Yellow Aventurine
Quartzite with Muscovite/Sericite inclusions (SiO2)
metamorphic
Black Onyx
Silicon Dioxide (SiO2)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Granite
Phaneritic Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)
igneous
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
mineral
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Mineral
Blue Dyed Agate Geode
Chalcedony (cryptocrystalline Quartz), SiO2
mineral
Porphyritic Basalt (likely artificially dyed or altered)
Basalt with plagioclase phenocrysts (likely treated)
igneous
Granite
Felsic Intrusive Igneous Rock
igneous
Amber (Green variation)
Succinite
fossil
Basalt
Mafic Igneous Rock
igneous
Clear Quartz
SiO2 (Silicon Dioxide)
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Petrified Wood
Silicified Wood (primarily SiO2)
fossil
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
igneous, sedimentary, metamorphic, and mineral
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
metamorphic
Chert (River Stone)
Microcrystalline Quartz (SiO2)
sedimentary