Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Gold Nugget
Gold (Au)
Tumbled blue-green fluorite (probable)
Fluorite, calcium fluoride (CaF₂)
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
Chalcedony (Agatized Coral / Rough Chalcedony Node)
Silicon Dioxide (SiO2)
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
Rhodonite Tumbled Chips
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Banded Agate
Cryptocrystalline Silica (SiO2)
Quartz
Silicon dioxide (SiO2)
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, with varying amounts of Calcite, Pyrite, and Sodalite).
Quartz
Silicon Dioxide (SiO2)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyritic Rock (Dalmatian Stone)
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
Quartz Pebble
Silicon Dioxide (SiO2)
Chrysoprase
Silicon Dioxide with Nickel inclusions (SiO2)
Pyrite
Iron Sulfide (FeS2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Blue Lace Agate
Silicon Dioxide (SiO2)
Wild Horse Magnesite
Magnesite with Hematite inclusions (MgCO3)
White Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Lapis Lazuli
Lapis Lazuli (Mineral composition: Lazurite, Calcite, Sodalite, and Pyrite)
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Red Jasper (in Quartz/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
Banded limestone or marble
Calcite-dominated carbonate rock; likely banded marble (CaCO₃)
Magnetite
Magnetite (Fe3O4)
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
Banded Gneiss
Gneiss
Fancy Jasper
Chalcedony (SiO2)
Red Jasper with Quartz Vein
Microcrystalline Quartz (SiO2) with Hematite inclusions
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Charoite
Charoite - K(Ca,Na)2Si4O10(OH,F)·H2O
Schist
Metamorphic Rock (Schist)
Gneiss
Gneiss
Pink Thulite
Thulite (Ca2Al3(SiO4)3(OH)) - Pink Zoisite
Fairy Stone (Staurolite Concretion)
Staurolite (Fe2+2Al9Si4O23(OH))
Quartz
Quartz (SiO2 - Silicon Dioxide)
Vesicular Basalt with Epidote/Amygdaloidal Basalt
Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)