Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Category
Mineraloid (Man Made Glass)
Browse mineraloid (man made glass) specimens identified by the Rock Identifier community.
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Chalk
Calcium Carbonate (CaCO3)
sedimentary
Slag (Industrial Glass/Metal Waste)
Artificial silicate/ferro-silicate byproduct
Mineraloid (Industrial byproduct)
Amber
Succinicum (Organic compound, primarily C10H16O)
Organic Gemstone (Mineraloid)
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (primarily SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Coquina
Bioclastic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Coquina
Biogenic Limestone (mostly Calcium Carbonate, CaCO3)
sedimentary
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Diamond
Carbon (C)
mineral
Sandstone
Arenite (SiO2 based typically)
sedimentary
Rough Diamond
Diamond (pure Carbon, C)
mineral
Fossilized Shell in Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Coquina
Coquina (Bioclastic Limestone)
sedimentary
Red Sandstone
Arenite (with Iron Oxide / Hematite staining)
sedimentary
Basalt
Basalt (comprising Plagioclase feldspar, Pyroxene, and Olivine)
igneous
Coquina
Coquina (Biogenic Limestone / CaCO3)
sedimentary
Chert (with Desert Varnish/Iron Stain)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2 + Fe2O3)
mineral
Coquina / Fossiliferous Limestone
Coquina (composed primarily of Calcium Carbonate / CaCO3)
sedimentary
Diorite
Diorite
igneous
Nephrite Jade
Nephrite
Mineral/Rock
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
sedimentary
Sandstone
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Marble
Metamorphic Limestone (CaCO3)
metamorphic
Rough Diamond
Diamond (pure Carbon, C)
mineral
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Natural Pearl (appearing in a jewelry setting)
Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin
mineral
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
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
Mineral, Jewelry
Chert
Chert (microcrystalline quartz)
sedimentary
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
igneous
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Granite
Granite (Felsic Plutonic Rock)
igneous
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
sedimentary
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
mineral
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
sedimentary