Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Pyrite, and Calcite)
Category
Browse not a rock or mineral (anthropogenic material) specimens identified by the Rock Identifier community.
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Pyrite, and Calcite)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Zebra Jasper
Tetragonal Silicon Dioxide (Quartz) with impurities
Basalt
Vesicular Basalt
Quartzite (River Pebble)
Quartzite (SiO2)
Desert Rose (Baryte or Selenite variant)
Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions
Coquina
Bioclastic Limestone
Ferruginous Quartzite (Red Sandstone/Quartzite)
Quartzite with Iron inclusions (SiO2 + Fe2O3)
Quartzite Pebble
Quartzite (primarily SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Banded Chert (River Siltstone)
Microcrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Serpentinite
Serpentinite
Cherry Creek Jasper (also known as Red Creek Jasper or Cherry Creek Agate)
Jasper, microcrystalline quartz (SiO₂)
Granite
Granite (Phaneritic Quartz-Feldspar Felsic Rock)
Granite
Granite
Jasper Conglomerate (Puddingstone)
Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)
Quartz Geode/Druzy Quartz
Quartz (SiO₂)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)
Orbicular Quartz Diorite / Tonalite
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Laterite
Laterite (primarily composed of hydrated oxides of iron and aluminum)
Basalt
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)
Coquina
Bioclastic Limestone (Calcium Carbonate, CaCO3)
Note: Item is not a geological specimen
n/a
Jasper
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Orange Quartz with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
Limonite
Limonite (FeOO·nH2O)
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Sandstone
Arenite (SiO2 based)
Quartzite Pebble
Quartzite (predominantly Silicon Dioxide - SiO2)
Diorite
Diorite (Intermediate intrusive igneous rock)
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Coquina
Biogenic Limestone (Calcium Carbonate - CaCO3)
Sandstone
Arenite (SiO2 primarily)
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
Diorite
Diorite