Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
Category
Browse industrial by product specimens identified by the Rock Identifier community.
Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
Chert (Cherty Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with iron silicate and iron oxide inclusions
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Amber
Succinite (C10H16O)
Pink Tumbled Agate
Silicon Dioxide (SiO2) with dye
Granite Cobble
Phaneritic Felsic Igneous Rock
Pearl
Aragonite / Calcium Carbonate (CaCO3)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Copper Bullion Round
Native Copper (refined), Cu
Carnelian
Carnelian (SiO2)
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
Chert (Flint)
Chert (SiO2)
Chert (v. Flint)
Sedimentary Cryptocrystalline Quartz (SiO2)
Amber
Succinite (Fossilized Tree Resin)
Moonstone
Orthoclase feldspar ((K,Na)AlSi3O8)
Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Opal
Hydrated Silica (SiO2·nH2O)
Amber
Succiniferous fossil resin (C10H16O)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Lapis Lazuli
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Chert (specifically Red Chert / Jasper nodule)
Silicon dioxide (SiO2)
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Amber
Succinicum (Succinite); C10H16O
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Amber
Succinite (Fossilized Tree Resin)
Amber
Succinite (a variety of fossilized tree resin); chemical formula appx. C10H16O
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Schist (Garnet-Mica Schist)
Garnet-Mica Schist (X-Y)3Z2(SiO4)3
Ambergris
Ambra grisea (Metabolic byproduct)
Rose Quartz
Silicon Dioxide (SiO2)
Kambaba Jasper
Stromatolite (Microbial mat fossil in silicified sediment)
Smoky Quartz
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Wood Paneling
Engineered Wood / Plywood Paneling
Black Pearl (Tahitian Style)
Calcium Carbonate (Aragonite) - CaCO3 with Conchiolin