Goldstone and pink quartz bead strands
Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible
mineral
Category
Man Made Glass (Often Grouped With Minerals In Lapidary)
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
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Man-made earbud charging case (Not a rock or mineral)
Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components
Synthetic/Man-made object
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
igneous or metamorphic (base stone); anthropogenic (decoration)
Potassium Feldspar
K-Feldspar (Orthoclase/Microcline) KAlSi3O8
mineral
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
mineral
Polished serpentine pebble
Serpentinite, chiefly serpentine-group minerals (chrysotile, lizardite, antigorite)
metamorphic
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
man-made glass
Quartz with Spessartine Garnet and Biotite
SiO2 (Quartz) with Mn3Al2(SiO4)3 (Spessartine)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Lepidolite
K(Li,Al)3(Al,Si,4)10(O,F,OH)2
mineral
Goldstone (Synthetic Aventurescence Glass)
Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)
mineraloid / man-made material
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (variations include Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
mineral
Chalcedony (Agate/Chert)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Potassium Feldspar
K-Feldspar (KAlSi3O8)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Mineral
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Turquoise (likely stabilized or simulated Howlite)
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Polished serpentine
Serpentine-group minerals, chiefly lizardite and/or antigorite; approximate formula Mg₃Si₂O₅(OH)₄
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Amethyst (with Pyrite and other minerals)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble with Chlorite or Epidote Inclusions
Silicon Dioxide (SiO2) with inclusions
metamorphic
K-Feldspar (Potassium Feldspar / Pink Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
mineral
Polished blue calcite sphere (tentative identification)
Calcite, CaCO₃; blue color generally results from trace impurities or inclusions
mineral
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
sedimentary
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Vanadinite on Barite
Pb5(VO4)3Cl (Vanadinite) with BaSO4 (Barite)
mineral
Bismuth
Bismuth (Bi)
mineral
Orgonite Pyramid (containing Amethyst and mixed minerals)
Silicon Dioxide (SiO2) in synthetic resin
gemstone
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral