Amber / Copal
Fossilized Tree Resin (Succinate)
Mineraloid
Category
Synthetic Polymer (Polylactic Acid)
Browse synthetic polymer (polylactic acid) specimens identified by the Rock Identifier community.
Learn about Synthetic Polymer (Polylactic Acid) in the encyclopedia
View all →
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Fursuit (Synthetic Fur Specimen)
Canis anthropomorphus syntheticus
Anthropomorphic Textile Construct
Yellow-orange faceted gemstone, likely citrine or yellow topaz
Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂
gemstone
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Opal (in Jewelry Setting)
Hydrated Silicon Dioxide (SiO2·nH2O)
gemstone
Diamond
Pure Carbon (C)
mineral
Composite Turquoise or Reconstituted Turquoise with Copper inclusions
CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes
mineral
Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Lapis Lazuli
Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Amber
Succinite (Approximate formula: C10H16O)
Mineraloid
Tumbled amber-like gemstone
Likely amber (fossilized resin; organic mineraloid), possibly citrine or yellow-brown glass imitation
gemstone
Tumbled amber
Fossilized tree resin; commonly succinite (organic resin, not a mineral)
fossil
Blue Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
mineral
Amber (likely natural amber fragment)
Fossilized plant resin; predominantly polymerized diterpenoid resin
gemstone
Amber
Fossilized tree resin (mainly polymerized diterpenoid resin)
gemstone
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Chalcanthite
Copper(II) sulfate pentahydrate (CuSO4·5H2O)
mineral
Staurolite (Cross Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Ruby
Corundum (Al2O3) with Chromium traces
mineral
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
mineral
Cubic Zirconia (Simulated Diamond)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Black spinel bead bracelet
Spinel (magnesium aluminate), MgAl₂O₄
gemstone
Tumbled amber
Amber (fossilized plant resin), chiefly polymerized diterpenoid resin
gemstone
Amber
Fossilized Tree Resin (Generic formula roughly C10H16O)
mineral
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
mineraloid
![Lapis Lazuli (in Matrix) (Na8[Al6Si6O24]S2 (Lazurite as the primary component)) — metamorphic](https://media.rockidentification.com/cc8b0a02-50a3-4f03-bf51-9245bab011ac-thumbnail.jpg)
Lapis Lazuli (in Matrix)
Na8[Al6Si6O24]S2 (Lazurite as the primary component)
metamorphic
Bismuth
Bismuth (Bi)
Mineral
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
metamorphic
Blue Sapphire
Corundum (Al2O3)
gemstone
Rough Corundum (likely Sapphire or Common Corundum)
Aluminum oxide (Al2O3)
mineral
Azurite-Malachite (often a mixed specimen)
Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2(CO3)(OH)2. The specimen appears to be a natural mixture or intergrowth of these two minerals.
Mineral
Faceted yellow gemstone, likely citrine
Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
White Sapphire
Corundum (Al2O3)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral