White quartz pebble
Quartz (SiO₂), likely milky quartz
mineral
Category
Sedimentary (Man Made Conglomerate)
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
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Concrete or artificial stone core sample
Artificial conglomerate
sedimentary
Conglomerate (Greenstone/Pebble Conglomerate)
Polymictic Conglomerate
sedimentary
Puddingstone
Polymictic Conglomerate
sedimentary
Puddingstone (specifically Gowganda Tillite or Jasper Conglomerate)
Jasper Conglomerate
sedimentary
Puddingstone (specifically Gowganda Tillite or St. Joseph Island Puddingstone)
Jasper Conglomerate
sedimentary
Puddingstone (Gowganda Tillite/Lorrain Quartzite)
Jasper Conglomerate
sedimentary
Opalite
Synthetic Glass (Simulated Opal)
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Ferrous Slag
Iron/Steel Slag (Complex Calcium-Alumino-Silicates)
Anthropgenic (Industrial Byproduct)
Aura Quartz (Rainbow Quartz)
Silicon Dioxide (SiO2) with metallic vapor coatings
mineral
Tumbled quartz pebble
Quartz, silicon dioxide (SiO₂), likely milky quartz
mineral
Small greenish crystal/mineral fragment
Indeterminate; possibly olivine, quartz, or a green gemstone fragment
mineral
Dalmatian jasper
Porphyritic microcrystalline quartz-rich rock, commonly sold as Dalmatian jasper; spots are chiefly arfvedsonite/amphibole minerals, sometimes altered feldspar
igneous
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
sedimentary
Opalite
Synthetic opalescent glass
glass
Aqua Aura Quartz
Silicon Dioxide (SiO2) bonded with Gold (Au)
mineral (treated)
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Goldstone
Aventurine glass
mineral (man-made glass)
Polymict conglomerate
Clastic conglomerate, likely polymictic pebble conglomerate
sedimentary
Opalite
Synthetic Opalised Glass
glass
Green glass-like mineral specimen, likely fluorite
Fluorite (calcium fluoride, CaF₂), if natural; appearance may also indicate colored glass
mineral
Opalite (likely man-made opalescent glass)
Opalite; not a true mineral, typically synthetic opalescent glass (silica-based)
mineral
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Cherry Quartz
SiO2 (Silicon Dioxide with iron-rich inclusions/dye)
mineral
Likely clear quartz pebble or glassy quartz fragment
Quartz (silicon dioxide, SiO₂)
mineral
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Polymict conglomerate (pebble conglomerate)
Clastic sedimentary rock; rounded pebble and granule clasts in a finer-grained matrix
sedimentary
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
mineral
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Tumbled clear quartz (rock crystal)
Quartz, silicon dioxide (SiO₂)
mineral
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Polished labradorite sphere
Labradorite, calcic plagioclase feldspar ((Ca,Na)(Al,Si)₄O₈)
mineral
Polished labradorite pendant
Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)
mineral
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral