Quartzite with inclusions or a banded chert
Quartzite or Chert
Category
Browse organic (if resin) or synthetic (if glass); simulating sedimentary or metamorphic (for natural stones) specimens identified by the Rock Identifier community.
Quartzite with inclusions or a banded chert
Quartzite or Chert
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
Amber / Copal
Succinite (fossilized tree resin)
Tumbled Yellow Quartz (Golden Quartz / Citrine)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Clear Quartz
Silicon dioxide (SiO2)
Amber
Succinite (specifically for Baltic amber); C10H16O (Variable organic compound)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Emerald
Beryl (Be3Al2(SiO3)6)
Yellow Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
Banded Chert
Silicon Dioxide (SiO2) with impurities
Amber
Succinite
Amber
Succinite
Smoky Quartz
Silicon Dioxide (SiO2)
Amber
Succinicum (Formula: C10H16O)
Citrine Quartz
Silicon Dioxide (SiO2) with trace Iron impurities
Clear Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Quartzite (variety Aventurine) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)
Amber
Succinite (fossilized resin)
Chert (Flint)
Silicon Dioxide (SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with trace Chromium/Vanadium
Clear Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 with K(Al,Cr)2AlSi3O10(OH)2)
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Amber (Cherry Amber)
Succinite (C10H16O)
Red aventurine
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
Shale with Vein Infillings
Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.
Amber
Succinicum (Organic Gemstone - Resinite)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Tumbled yellow quartz (likely citrine or iron-stained quartz)
Quartz, SiO₂; yellow color from trace iron or irradiation/heat-related coloration
Clear Quartz
Silicon Dioxide (SiO2)
Rough Corundum (likely Sapphire or Common Corundum)
Aluminum oxide (Al2O3)
Quartzite Beach Pebble
Quartzite (primarily SiO2)
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
Tumbled amethyst
Quartz, crystalline silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
Quartzite river stone
Quartzite (SiO2)
Amber
Succinite (fossilized resin); C10H16O
Red Jasper
Red Jasper (SiO2 with Hematite inclusions)
Chrysanthemum Stone
Celestine (SrSO4) or Calcite (CaCO3) in Limestone/Porphyry matrix
Green Aventurine
Quartzite (Silicon Dioxide, SiO2 + Fuchsite)