White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Mineral
Category
Man Made Composite (Lithified Equivalent Of Sedimentary)
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
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Painted Garden Rock
Coated Siltstone or Mudstone
sedimentary
Diamond
Natural Diamond (Carbon, C)
gemstone
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Diamond (or Diamond Simulant)
Carbon (C)
mineral
Diamond (as set in a metal alloy ring)
Diamond (Pure Carbon, C)
mineral
Sandstone
Arenite
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Diamond (Cut Gemstone)
Natural Carbon (C)
gemstone
Jasper and Quartz Breccia
Silicified Breccia / Microcrystalline Quartz
sedimentary
Sandstone
Sandstone (Arenite)
sedimentary
Sandstone
Arenite (primarily Quartz Sandstone with Iron Oxide)
sedimentary
Banded Jasper (possibly "Picture Jasper")
Jasper (a microcrystalline variety of Quartz / Silicon Dioxide - SiO2)
Sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate)
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
gemstone
Mica-rich schist, likely lepidolite or muscovite schist
Mica schist; predominantly muscovite KAl₂(AlSi₃O₁₀)(OH)₂, possibly lithium-rich lepidolite
metamorphic
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-oxide cemented)
sedimentary
Sandstone
Arenite (composed mainly of SiO2)
sedimentary
Pearl (Biogenic Mineraloid)
Calcium carbonate (Aragonite) and Conchiolin, CaCO3
mineral
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Sedimentary
Sandstone
Arenite
sedimentary
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/92ebc6b5-08ac-4229-a727-57a096ec7f2c-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Granodiorite with Quartz Veining
Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Coal (Bituminous or Anthracite)
Carbonaceous Sedimentary Rock
sedimentary
Chert or flint fragment
Microcrystalline quartz (SiO₂), likely silicified rock
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with Fe-oxide cement)
sedimentary
Dyed Dalmatian Stone
Aplite (Alkali-feldspar granite) with Arfvedsonite
igneous
Chert (with Calcite layering)
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (with Moss/Lichen Growth)
Sandstone (Quartz Arenite / Lithic Arenite)
sedimentary
Pegmatite with mica and feldspar
Granitic pegmatite; chiefly quartz (SiO₂), feldspar, and mica, possibly with tourmaline or sulfides
igneous
Quartz-rich pegmatitic rock, possibly rose quartz with mica
Granitic pegmatite; predominantly quartz (SiO₂), with feldspar and mica
igneous
Diamond
Carbon (C)
gemstone
Rough Diamond
Diamond (Pure Carbon: C)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Mixed Tumbled Rocks and Minerals Collection
Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)
mineral
Cockle Shell (Bivalve)
Cardiidae (Calcium Carbonate, CaCO3)
fossil