Sandstone (with Concretion)
Arenite / Quartzose Sandstone
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Sandstone (with Concretion)
Arenite / Quartzose Sandstone
Basalt
Basalt (Aphanitic mafic volcanic rock)
Diorite
Diorite (intermediate intrusive igneous rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Aventurine
Silicon Dioxide (SiO2) with inclusions
Shale or Mudstone River Pebble
Argillaceous sedimentary rock
Sandstone Concretion
Ferruginous Sandstone Concretion
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)
Sandstone (Quartzose)
Arenite (predominantly SiO2)
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
Red Dyed Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Greenschist
Greenschist facies rock
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Quartz with Mica
SiO2 (Quartz) with Potassium aluminum silicate (Muscovite)
Quartz nodule (River pebble)
Silicon Dioxide (SiO2)
Sunstone
Heliolite (Oligoclase or Orthoclase Feldspar), (Ca,Na)(Al,Si)4O8
Tree Agate (Dendritic Agate)
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
Mica Schist
Mica Schist (predominantly composed of Muscovite or Biotite silicates)
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
Sandstone (Ferruginous)
Arenite (Fe-oxide cemented)
Sandstone
Arenite (primarily Quartz, SiO2)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Chert with Quartz/Calcite Vein
Microcrystalline Silica (SiO2)
Fossilized Fish (Lepidotes)
Lepidotes sp. (Order: Lepisosteiformes)
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Banded Gneiss
Gneiss (variable mineral composition)
Diorite
Diorite (Intermediate intrusive igneous rock)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Dyed Howlite
Borosilicate hydroxide (Ca2B5SiO9(OH)5)
Milky Quartz
Silicon Dioxide (SiO2)
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Fe/Mn/Mg)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)