Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Mineral
Category
Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites)
Browse industrial byproduct (often confused with igneous rocks or meteorites) specimens identified by the Rock Identifier community.
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Pegmatitic Granite
Granite with Orthoclase Feldspar and Quartz (SiO2, KAlSi3O8)
igneous
Blue Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F, OH)2)
mineral
Pink/red faceted gemstone, likely synthetic ruby or pink sapphire
Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material
gemstone
Milky quartz (rough quartz crystal)
Quartz, silicon dioxide (SiO₂)
mineral
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Sapphire (Corundum variety)
Sapphire (Al₂O₃)
Mineral
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Dark rounded pebble, possibly basalt
Basalt (fine-grained mafic volcanic rock; identification tentative from photograph)
igneous
Pegmatite with Smoky Quartz and Feldspar
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
igneous
Fluorite
Calcium fluoride (CaF2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Epidosite
Epidosite (predominantly Epidote {Ca2Al2Fe3+Si3O12(OH)} and Quartz {SiO2})
metamorphic
Fluorite (left), Sodalite (middle), Dumortierite/Tumbled Quartzite (right)
Calcium Fluoride (CaF2), Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2), Aluminum Borosilicate (Al7(BO3)(SiO4)3O3)
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Red Quartzite
Tectonically compressed Quartz-rich rock (SiO2)
metamorphic
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amazonite
Amazonite / Microcline (KAlSi3O8)
igneous
Milky quartz
Quartz (SiO₂), likely massive milky quartz
mineral
Pearl (with Peridot)
Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Weathered quartz-rich rock fragment
Likely quartz-bearing sandstone or granitic rock; exact identification is uncertain from the image
mineral
Yellow Aventurine
Silicon Dioxide (SiO2) with inclusion of Mica
Mineral (Variety of Quartz)
Red Scoria
Scoria (Vesicular Basalt/Andesite)
igneous
Chalcedony (Moonstone variant or White Agate)
Silicon Dioxide (SiO₂)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Tufa (Vesicular Limestone)
Tufa (form of Calcium Carbonate, CaCO3)
sedimentary
Pumice
Pumice (a highly vesicular volcanic rock)
igneous
Red Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Garnet
Garnet Group (Silicate Minerals)
mineral
Chrysocolla in Jasper (Chryso-Jasper)
Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O (Chrysocolla) + SiO2 (Jasper)
mineral
Milky quartz (likely weathered quartzite or quartz vein fragment)
Quartz, silicon dioxide (SiO₂)
mineral
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Quartz (in a rock matrix)
Quartz (SiO2)
mineral
White Topaz
Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2
mineral
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
mineral
Rough Corundum (likely Sapphire or Common Corundum)
Aluminum oxide (Al2O3)
mineral