Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)
Category
Browse industrial by product specimens identified by the Rock Identifier community.
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)
Pyrite
Iron Disulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
Red Moss Agate (Jasper)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Banded Calcite (often sold as Caribbean Calcite or Pink Calcite)
Calcium Carbonate (CaCO3)
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Obsidian (Gold Sheen)
Obsidian (SiO2 + impurities)
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Pyrite
Iron Sulfide (FeS2)
Chert (containing Flint and Calcareous inclusions)
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) impurities
Chert (Grey-Green Flint)
Microcrystalline silicon dioxide (SiO2)
Pyrite
Iron Pyrite (FeS2)
Pyrite
Iron Disulfide (FeS2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Chert (specifically Tan/Brown Chert)
Chert (SiO2)
Limestone
Carbonate rock (CaCO3)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Soapstone mushroom decorative carving
Steatite (Hydrous magnesium silicate, Mg3Si4O10(OH)2)
Green Aventurine (Double-Terminated Wand)
Silicon Dioxide (SiO2) containing Fuchsite (Chromium-rich Muscovite Mica)
White Marble
Recrystallized Calcite (CaCO3)
Howlite and Purple Amethyst Druzy
Calcium Borosilicate Hydroxide (Howlite) and Silicon Dioxide (Quartz/Amethyst)
Shale
Fissile Clay-dominant Mudrock (SiO2, Al2O3, K2O, Na2O, CaO, MgO)
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Goldstone
Aventurine Glass (SiO2 + Cu small inclusions)
Anthracite Coal
Anthracite (a variety of coal, predominantly carbon)
Chert (or Flint)
Chert (microcrystalline or cryptocrystalline quartz, SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Banded Iron Formation
Banded Iron Formation (BIF)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (Microcline)
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Petrified Wood
Silicified Wood (SiO2)
Blue Howlite (Dyed)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Amethyst (Chevron Amethyst/Dream Amethyst)
Silicon Dioxide (SiO2) with trace Iron impurities
Chert Nodules
Chert (SiO2)
Chert (Flint)
Chert (SiO2)
Pyrite (or Fool's Gold)
Pyrite (FeS₂)
Amber
Succinite
Chert (often called Flint)
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)