Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)
Category
Browse industrial by product specimens identified by the Rock Identifier community.
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)
Diamond
Carbon (C)
Rough Diamond
Diamond (pure Carbon, C)
Banded Slag Glass (Leland Blue/Frankfort Green style)
Anthropogenic Glass Specimen (Amorphous Silicon Dioxide with impurities)
Opalite
Man-made Glass (SiO2 + additives)
Cullet Glass (Strawberry Glass)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
Native Copper in Basalt
Cuprum (with Host Basalt)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite with Dark Mineral Inclusions
Quartzite (primarily SiO2) with accessory minerals
Quartzite
Quartzite (SiO2)
Quartzite (Quartz-rich Cobble)
Quartzite (SiO2)
Yellow Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (mainly SiO2)
White Marble (Industrial/Architectural)
Recrystallized Calcite (CaCO3)
Black Sapphire
Corundum (Al2O3 with iron and titanium impurities)
Rough Diamond
Pure Carbon (C)
Crushed Stone / Gravel
Aggregatus saxum (variable mineral composition)
Chert (specifically Jasper/Flint)
Microcrystalline Quartz (SiO2)
Blue Chalcedony and Picture Jasper Beads
Blue Chalcedony (SiO2), Picture Jasper (SiO2)
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Chakra Tumbled Stone Set
Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Quartzite
Quartzite (primarily SiO2)
Grey Quartzite Pebble
Quartzite (primarily SiO2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Quartz River Pebble with Algae
Silicon Dioxide (SiO2) with organic biofilm
Quartzite
Quartzite (mostly SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Orange Calcite
Calcium Carbonate (CaCO3)
Blue Sapphire (Raw/Tumbled Corundum)
Corundum (Aluminum Oxide, Al2O3 with Fe/Ti traces)
Quartzite (River Stone)
Quartzite (SiO2)
Green Jasper
Silicon Dioxide (SiO2)
Schist
Mica Schist
Quartzite River Cobble
Quartzite (primarily SiO2)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
Vesicular Basalt (Lava Rock)
Basalt
Sandstone (likely Quartzite-rich)
Arenite (primarily SiO2)