Jasper
Silicon dioxide (SiO2)
Category
Browse sedimentary or mineral specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Sandstone Pebble / Quartzite Pebble
SiO2 (Silicon Dioxide enriched sedimentary rock)
Sandstone (Iron-stained)
Clastic sedimentary rock (SiO2 with Fe2O3 staining)
Sandstone Concretion
Sandstone (Sedimentary Rock) with silica or calcite cement
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite
Gneiss (Metamorphic Rock Pebble)
Foliated Metamorphic Rock (Quartz-Feldspar Gneiss / Granitic Gneiss)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Amber in Matrix
Succinite (Carbon-based organic polymer)
Quartz Crystal on Matrix
Silicon Dioxide (SiO2)
Gneiss (with Quartzite and Biotite)
Gneiss containing SiO2 (Quartz), K(Mg,Fe)3AlSi3O10(OH)2 (Biotite), and (K,Na,Ca)AlSi3O8 (Feldspar)
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
Orange Calcite
Calcium Carbonate (CaCO3)
Druzy Quartz on Limestone
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Black Opal
Hydrated Silica (SiO2·nH2O)
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Geode with Agate
Silicon Dioxide (SiO2)
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Quartz
SiO2 (Silicon dioxide)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Magnetite Nodule
Magnetite (Fe3O4)
Milky Quartz
Quartz (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Iron Oxide/Chlorite
Turquoise (Dyed Howlite/Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Target mineral) / MgCO3 (Magnesite substrate)
Hematite (Nodular or Botryoidal)
Iron(III) oxide (Fe2O3)
Magnetite
Magnetite (Fe3O4)
Orange Calcite
Calcium Carbonate (CaCO3)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Satin Spar (Selenite Gypsum Sphere)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Galena
Lead(II) sulfide (PbS)
Galena
Lead Sulfide (PbS)