Chrysocolla in Malachite
Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
mineral
Category
Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)
Browse organic (if resin) or synthetic (if glass); simulating sedimentary or metamorphic (for natural stones) specimens identified by the Rock Identifier community.
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Staurolite (Fairy Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Chert with Asphaltum (or Tar)
Silica (SiO2) with natural Bitumen/Asphaltum
sedimentary
Amber
Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O
mineral
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Shale
Fissile Mudstone (Shale)
sedimentary
Amber
Succinite
Mineraloid
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
sedimentary
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
not a rock
Amber
Succinite (Fossilized Tree Resin)
Organic Mineraloid
Amber with Organic Inclusions
Succinite (fossilized resin)
mineraloid
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite / Hematite mix (Iron Ore)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Amber
Succinite (fossilized resin, C10H16O)
mineral
Shale (sub-type: Carbonaceous Shale)
Lutaceous Sedimentary Rock
sedimentary
Sandstone
Clastic sedimentary rock (primarily Quartz and Feldspar)
sedimentary
Hag Stone
Perforated Sedimentary Rock
sedimentary
Shale
Shale (Sedimentary rock composed of mud/clay minerals)
sedimentary
Amber (Rough Baltics/Beach Specimen)
Succinicum (Organic Gemstone - Fossilized Resin)
mineral
Shale (or Mudstone)
Siltstone/Argillite (composed mainly of clay and silt-sized particles)
sedimentary
Beach Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
White Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Mineraloid
Hag Stone
Porous sedimentary rock (typically Flint, Chert, or Sandstone) with naturally occurring holes
sedimentary
Shale
Clastic sedimentary rock (primarily clay and silt minerals)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Black Chert)
Silicon Dioxide (SiO2)
sedimentary
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Mineral
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Amber
Organic gemstone (Succinite)
mineral
Amber
Succinite (Formula: C10H16O)
mineral
Tiger's Eye (likely variant or dark tumble)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
mineral
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Blue Agate (Dyed)
Silicon Dioxide (SiO2)
mineral
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral