Rock Identifier

Category

Synthetic Polymer (Polylactic Acid)

Browse synthetic polymer (polylactic acid) specimens identified by the Rock Identifier community.

Amber with Inclusion (Succiniferous fossil resin (C10H16O)) — mineraloid

Amber with Inclusion

Succiniferous fossil resin (C10H16O)

Blue Goldstone (Aventurine Glass) — Man-made glass (often grouped with minerals in lapidary)

Blue Goldstone

Aventurine Glass

Man-made glass (often grouped with minerals in lapidary)

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Ring with an Orange Inlay (N/A (Man-made object)) — Man-made Object (Ring)

Ring with an Orange Inlay

N/A (Man-made object)

Man-made Object (Ring)

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

Cubic Zirconia (Simulated Diamond) (Zirconium Dioxide (ZrO2)) — mineral (synthetic)

Cubic Zirconia (Simulated Diamond)

Zirconium Dioxide (ZrO2)

mineral (synthetic)

Man-made Polished Porcelain Tile (Artificial Geologic Lookalike) (Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)) — Synthetic (Ceramic)

Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)

Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)

Synthetic (Ceramic)

Goldstone (Red) (Aventurine Glass) — Man-made material (Simulated Mineral)

Goldstone (Red)

Aventurine Glass

Man-made material (Simulated Mineral)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli (in Matrix) (Na8[Al6Si6O24]S2 (Lazurite as the primary component)) — metamorphic

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Bismuth (Bismuth (Bi)) — Mineral

Bismuth

Bismuth (Bi)

Rough Corundum (likely Sapphire or Common Corundum) (Aluminum oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Crushed Limestone and Calcite (Calcium Carbonate (CaCO3)) — sedimentary

Crushed Limestone and Calcite

Calcium Carbonate (CaCO3)

White Sapphire (Corundum (Al2O3)) — mineral

White Sapphire

Corundum (Al2O3)

Lapis Lazuli (Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)) — Mineral

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)

Beads (likely glass or man-made material) (N/A (artificial material)) — Man-made material, not a natural rock or mineral specimen

Beads (likely glass or man-made material)

N/A (artificial material)

Man-made material, not a natural rock or mineral specimen

Amber (Succinite (Formula: C10H16O)) — Mineraloid

Amber

Succinite (Formula: C10H16O)

Note: This is a Man-Made Object (Costume/Prop Patch) (Synthetic fiber and pigments (Cellulose/Plastic-based composite)) — Non-geological

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Calcite on Limestone (or Fossil) (Calcium Carbonate (CaCO3)) — sedimentary

Calcite on Limestone (or Fossil)

Calcium Carbonate (CaCO3)

Smoky Quartz (Silicon dioxide with aluminum impurities (SiO2)) — mineral

Smoky Quartz

Silicon dioxide with aluminum impurities (SiO2)

White Calcite (Calcium Carbonate (CaCO3)) — mineral

White Calcite

Calcium Carbonate (CaCO3)

Rough Emerald (Beryl) (Emerald (Be3Al2(SiO3)6 with Cr/V impurities)) — mineral

Rough Emerald (Beryl)

Emerald (Be3Al2(SiO3)6 with Cr/V impurities)

Ruby (Corundum (Al2O3 with Chromium traces)) — mineral

Ruby

Corundum (Al2O3 with Chromium traces)

Fursuit (Synthetic Fur Specimen) (Canis anthropomorphus syntheticus) — Anthropomorphic Textile Construct

Fursuit (Synthetic Fur Specimen)

Canis anthropomorphus syntheticus

Anthropomorphic Textile Construct

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation) (Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)) — mineral

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation)

Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)

Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Limestone (Calcium carbonate (CaCO3)) — sedimentary

Limestone

Calcium carbonate (CaCO3)

Goldstone (Red/Brown) (Aventurine Glass (SiO2 with Copper inclusions)) — Mineral (Man-made glass)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Mineral (Man-made glass)

Limestone (specifically Fossiliferous Limestone) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically Fossiliferous Limestone)

Calcium Carbonate (CaCO3)

Opalite (a synthetic glass, often confused with Opal) (Silicon dioxide glass (SiO2nH2O, for natural opal)) — Synthetic (glass)

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Synthetic (glass)

Fossiliferous Limestone (Crinoidal) (Calcite-bearing bioclastic packstone (CaCO3)) — sedimentary

Fossiliferous Limestone (Crinoidal)

Calcite-bearing bioclastic packstone (CaCO3)

Amber (Succinite (Fossilized Tree Resin)) — mineral

Amber

Succinite (Fossilized Tree Resin)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Anthracite Coal (Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)

Banded Calcite (often sold as 'Mexican Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Mexican Onyx')

Calcite (Calcium Carbonate, CaCO3)

Fossiliferous Limestone (Coquina / Shell Limestone) (CaCO3 (Calcium Carbonate)) — sedimentary

Fossiliferous Limestone (Coquina / Shell Limestone)

CaCO3 (Calcium Carbonate)

Honey Calcite (Calcium Carbonate (CaCO3)) — mineral

Honey Calcite

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Fossiliferous Limestone (Coral Fossil) (Scleractinian Coral in Calcium Carbonate (CaCO3)) — sedimentary

Fossiliferous Limestone (Coral Fossil)

Scleractinian Coral in Calcium Carbonate (CaCO3)

Marble (Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)) — metamorphic

Marble

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)