White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
mineral
Category
Mineral Based Composite
Browse mineral based composite specimens identified by the Rock Identifier community.
Learn about Mineral Based Composite in the encyclopedia
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Soapstone (talc-rich schist)
Talc schist; chiefly hydrated magnesium silicate, Mg₃Si₄O₁₀(OH)₂
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Rough quartz crystal, possibly smoky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Tumbled amethyst (tentative)
Amethyst, purple variety of quartz (SiO₂)
mineral
Sandstone Cobble
Arenite (Secondary classification based on grain size)
sedimentary
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Anthropogenic Mineral Mimic
Polished turquoise
Turquoise — hydrated copper–aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Turquoise in Matrix
Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O
mineral
Tree Agate (or Moss Agate), faceted into a crystal tower
Dendritic Agate (Silicon Dioxide, SiO2)
Mineral
Polished turquoise cabochon
Turquoise, hydrous copper-aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
igneous
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Milky quartz fragment
Quartz (silicon dioxide, SiO₂)
mineral
Banded Calcite
Calcium Carbonate (CaCO3)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Cubic Zirconia (Faceted)
Zirconium Dioxide (ZrO2)
mineral
Banded Calcite (Mexican Onyx)
Calcite (Calcium Carbonate, CaCO3)
mineral
Basaltic Tuff / Volcanic Breccia
Pyroclastic Breccia / Lithic Tuff
igneous
Small clear crystal, probably quartz
Quartz (SiO₂), possibly a tiny quartz chip or translucent feldspar fragment
mineral
Amethyst
Amethyst (Silicon Dioxide with iron impurities), SiO2
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone (likely Graywacke or Lithic Sandstone)
Arenite / Wacke (SiO2 based with lithic fragments)
sedimentary
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Turquoise cabochon
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
gemstone
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Zebra Jasper
Tumbled Opaque Chalcedony (SiO2)
sedimentary
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Rock (likely Sedimentary)
Milky quartz (rough quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Honey calcite (orange/yellow calcite)
Calcite — calcium carbonate, CaCO₃
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Clear/Smoky Geode fragment)
Silicon Dioxide (SiO2)
mineral
Tumbled Carnelian and Quartz Mix
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Diamond
Native Carbon (C)
mineral
Gold Nugget
Native Gold (Au)
mineral
Gold Nugget
Native Gold (Au)
mineral
Silver (Jewelry Specimen)
Native Silver (Chemical Formula: Ag)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Dark metamorphic rock, likely slate or phyllite
Foliated metapelite; commonly mica-rich quartz–clay mineral assemblage
metamorphic
Yellow calcite crystal specimen
Calcite (CaCO₃), likely honey/yellow calcite
mineral