Lapis Lazuli
Lapis Lazuli (Metamorphic rock containing lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, calcite, and pyrite)
Category
Browse sedimentary (if limestone) or metamorphic (if marble) specimens identified by the Rock Identifier community.
Lapis Lazuli
Lapis Lazuli (Metamorphic rock containing lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, calcite, and pyrite)
Lapis Lazuli
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Chert (with Limestone/Marble traces)
Silicon Dioxide (SiO2) / Microcrystalline Quartz
Orange Calcite
Calcium Carbonate (CaCO3)
Banded calcite (likely cave deposit or vein fragment)
Calcite, CaCO₃
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Calcite (often sold as 'Ocean Jasper' or 'Caribbean Calcite' variant)
Calcium Carbonate (CaCO3) with potential Aragonite inclusions
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Weathered limestone cobble
Limestone, primarily calcite (CaCO₃), possibly fossiliferous or micritic
Calcite-rich limestone
Limestone, predominantly calcite (CaCO₃), possibly recrystallized
Tumbled limestone or calcite-rich stone
Limestone, predominantly calcite (CaCO₃); exact identification is uncertain from the photograph
Fossiliferous limestone fragment
Limestone, chiefly calcite (CaCO₃), possibly containing shell or coral fossil material
Quartzite
Quartzite (primarily SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)
Orange Calcite (Carved as a Horned Skull)
Calcium Carbonate (CaCO3)
Calcite
Calcite (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Green Onyx (Commercial Marble/Travertine)
CaCO3 (Calcite / Banded Limestone)
Blue Calcite
Calcium Carbonate (CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Optical Calcite
CaCO3 (Calcium Carbonate)
Orange Calcite
Calcium Carbonate (CaCO3)
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Sapphire
Corundum (Al2O3)
Quartzite
Quartzite (chiefly SiO2)
Tumbled calcite (likely honey/white calcite)
Calcite, calcium carbonate (CaCO₃)
Lapis Lazuli
Lazurite (primary mineral component), (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2
Pink Quartzite
Quartzite (primarily SiO2 with trace impurities of iron oxides)
Honey calcite (likely rough calcite)
Calcite, calcium carbonate (CaCO₃)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (principally SiO2)