Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Category
Browse marble specimens identified by the Rock Identifier community.
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Lapis Lazuli
Lapis Lazuli (Complex silicate mixture including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Yellow Sapphire
Corundum (Al2O3) with iron impurities
Rough Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium
Lapis Lazuli
Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)
Honey Calcite
Calcium Carbonate (CaCO3)
Lapis Lazuli Globe
Complex mixture of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite
Optical Calcite
Calcium Carbonate (CaCO3)
Lapis Lazuli (Raw)
Lazurite-rich metamorphic rock; Na3Ca(Al3Si3O12)S
Lapis Lazuli
Lazurite-rich metamorphic rock (complex silicate)
Lapis Lazuli (Low-grade/Calcite-heavy)
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
Sapphire Rough (Corundum)
Corundum (Aluminum Oxide, Al2O3)
Ruby
Corundum (Al2O3:Cr)
Quartzite
Quartzite (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Quartzite
Quartzite (SiO2)
Amethyst and Limestone
Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)
Ruby (Corundum)
Al2O3 (Aluminium oxide with Chromium impurities)
Red Quartzite
Quartzite (primarily SiO2)
Zebra Jasper
Silicon Dioxide (SiO2) with various inclusions
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
Quartzite
Quartzite (SiO2)
Red Quartzite / River Cobble
Quartzite (SiO2 with iron oxide impurities)
Banded Calcite
Calcite (Calcium Carbonate, CaCO3)
Quartzite
Quartzite (SiO2)
Diorite (with Iron Staining)
Phaneritic Intermediate Igneous Rock
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (primarily SiO2)
Quartzite
Quartzite (SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Ruby and Diamond in Gold Setting
Corundum (Al2O3) and Diamond (C)
Green Calcite
Calcium Carbonate (CaCO3)
Chert (often called Flint or Jasper)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Black Limestone with Calcite Veining
Limestone (CaCO3) with Calcite (CaCO3) inclusions
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
Serpentine
Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Blue Quartzite
Blue Quartzite (Primary mineral: Quartz, SiO2 with magnesio-riebeckite or crocidolite inclusions)
Emerald (Tumbled Beryl)
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities