Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Category
Mineral (Man Made Composite)
Browse mineral (man made composite) specimens identified by the Rock Identifier community.
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Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
mineral
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Boxwork or Septarian Concretion
Septarian nodule / Boxwork weathering
sedimentary
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
sedimentary (artificial)
Slag
Metallurgical Slag
igneous
Chert (Chalky Flint Node)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Goldstone
Aventurine glass
mineral (man-made glass)
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
mineraloid
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
mineral
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Pink Quartz / Sea Glass
Silicon Dioxide (SiO2)
mineral
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
mineral
Bismuth
Bismuth (Bi)
mineral
Libyan Desert Glass
Libyan Desert Glass (SiO2 with trace elements)
mineral (impactite)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
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
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
sedimentary
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
mineral
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Opalite
Synthetic Opalised Glass
mineral
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
mineral
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
sedimentary (anthropogenic/man-made)
Glazed Ceramic Tile
Fused Silicate-Clay composite
Synthetic (Man-made material mimicking natural stone)
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Asphalt aggregate (crushed stone in bitumen)
Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen
sedimentary
Concrete rubble
Anthropogenic conglomerate
sedimentary
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)