Mineral And Organic Gemstone

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Rhodonite in Quartz Matrix

Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3

Smoky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Botryoidal Hematite (Kidney Ore)

Iron(III) oxide (Fe2O3)

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chalcedony (Common Opal variant)

Silicon dioxide (SiO2) with microcrystalline structure

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3

Rose Quartz

Quartz (Silicon Dioxide) - SiO2

Montana Moss Agate

Chalcedony (Silicon Dioxide, SiO2)

Turquoise

Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O

Moonstone (Feldspar)

Orthoclase/Albite ((K,Na)AlSi3O8)

Pegmatite with Schorl (Black Tourmaline) and Mica

Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)

Jasper (Picture Jasper variety)

Silicon Dioxide (SiO2) with impurities

Quartzite (specifically Milky Quartz variety)

Quartz (SiO2)

Pegmatite

Coarse-grained Igneous Rock (Granitic Pegmatite)

Fluorite

Calcium Fluoride (CaF2)

Quartz / Quartz Cluster

Silicon Dioxide (SiO2)

Green Tourmaline (Verdelite)

Elbaite (Complex Borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Rough Green Tourmaline (Verdelite)

Elbaite (Complex Borosilicate), Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Tiger's Eye

Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)

Rose Quartz

Rose Quartz (SiO2)

Labradorite

Labradorite (a calcium-enriched sodic plagioclase feldspar mineral - (Ca, Na)(Al, Si)4O8)

Amethyst (as part of a multi-stone bracelet)

Silicon Dioxide (SiO2) with iron impurities

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Diamond

Diamond (pure Carbon, C)

Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Rough Diamond

Pure Carbon (C)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Carnelian Agate

Carnelian (Silicon Dioxide, SiO2)

Agate

Banded Chalcedony (SiO2 - Silicon Dioxide)

Blue Quartzite

Quartzite (primarily SiO2) with inclusions like Dumortierite or Crocidolite

Shale

Fissile Mudstone (primarily composed of clay minerals and quartz)

Quartz (Variety: Citrine or Tumbled Chalcedony)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Blue Quartz (specifically Dumortierite Quartz)

Silicon Dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)

Epidosite

Epidosite (predominantly Epidote {Ca2Al2Fe3+Si3O12(OH)} and Quartz {SiO2})

Tiger's Eye

SiO2 (Silicon Dioxide with Iron Oxide inclusions)