Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
Category
Browse marble specimens identified by the Rock Identifier community.
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Honey Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Lapis Lazuli
Lapis Lazuli (Complex silicate mixture)
Orange Calcite
Calcium Carbonate (CaCO3)
Honey Calcite
Calcite (Calcium Carbonate - CaCO3)
Brown Jasper / Chert Pebbles
Microcrystalline Quartz (SiO2) with iron oxide impurities
Honey Calcite
Calcium Carbonate (CaCO3)
Quartzite
Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Picasso Jasper (or Picasso Marble)
Metamorphosed Limestone (Calcium Carbonate, CaCO3, with impurities)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite (Banded Calcite)
Calcium Carbonate (CaCO3)
Quartzite
Quartzite (primarily SiO2)
Zebra Jasper
Silicon Dioxide (SiO2) with impurities
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Gneiss (Metamorphic Cobble)
Gneiss (High-grade Regional Metamorphic Rock)
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
Orange Calcite
Calcium Carbonate (CaCO3)
Calcite
Calcium Carbonate (CaCO3)
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
Lapis Lazuli
Lapis lazuli (complex rock; primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Calcite
Calcium Carbonate (CaCO3)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Corundum (Sapphire)
Corundum (Al2O3)
Orange Calcite
Calcium Carbonate (CaCO3)
Ruby (Rough/Raw)
Corundum (Al2O3:Cr)
Lapis Lazuli
Sodalite-rich metamorphic rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Blue Sapphire
Corundum (Al2O3)
Blue Sapphire
Corundum (Al2O3 with trace Titanium/Iron)
Verde Antique Marble (Serpentinite)
Serpentinite (composed mainly of Serpentine group minerals, Mg3Si2O5(OH)4)
Quartzite with Iron Inclusions
Metamorphosed Quartz Arenite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite River Pebble
Quartzite (primarily SiO2)