Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Category
Organic Gem Material (Botanical)
Browse organic gem material (botanical) specimens identified by the Rock Identifier community.
Learn about Organic Gem Material (Botanical) in the encyclopedia
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Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Chert (primarily Microcrystalline Quartz - SiO2)
sedimentary
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
igneous
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Cherty Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary
Travertine (Tufa)
Calcium Carbonate (CaCO3)
sedimentary
Yellow Sapphire (Raw)
Corundum (Al2O3)
mineral
Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Lake Superior Agate
Chalcedony (cryptocrystalline Quartz, SiO2) with iron oxide inclusions
mineral
Rose Quartz
Rose Quartz (SiO2 - Silicon Dioxide with trace amounts of titanium, iron, or manganese)
mineral
Raw Emerald in Schist Matrix
Beryl (Be3Al2Si6O18) in Mica Schist
Mineral in Metamorphic Rock
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
mineral
Oak-grain Laminate (Industrial/Decorative Furniture Finish)
Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)
not a rock (synthetic material)
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
mineral
Chert (Pebble)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint/Gray Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Carbonaceous Chondrite (CV3 type)
Carbonaceous Chondrite (CV3 group)
meteorite
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Yellow Jasper/Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Crushed Limestone
Calcite-rich Sedimentary Rock (CaCO3)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint or Common Chert)
Silicon Dioxide (SiO2)
sedimentary
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
mineral
Petrified Wood
Silicified wood (primarily Silicon Dioxide - SiO2)
metamorphic
Banded Chert (River Siltstone)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous
Glauconitic Sandstone (or Greensand)
Glauconitic Siliciclastic Rock (Containing (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
sedimentary
Glacial Cobble (likely Granitic or Gneissic)
Granite/Gneiss Glacial Erratic
igneous
Limestone (specifically Fossiliferous or Crinoidal Limestone)
Calcium Carbonate (CaCO3) - Calcite Rock
sedimentary
Diamond
Diamond (C)
mineral
Lake Superior Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral