Quartz (Iron-stained or Ferruginous Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Quartz (Iron-stained or Ferruginous Quartz)
Silicon Dioxide (SiO2)
Desert Rose
Gypsum (variety Selenite) or Barite, CaSO4·2H2O
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
Orange Calcite
Calcium Carbonate (CaCO3)
Kunzite (Spodumene)
Spodumene (LiAlSi2O6)
Diamond
Carbon (C)
Diamond (in jewelry)
Diamond (Carbon, C)
Diamond (set in a gold ring)
Carbon (C) - Adamantine cubic carbon
Quartz (River Pebble)
Silicon Dioxide (SiO₂)
Rough Ruby (Corundum) in Zoisite Matrix
Al2O3 (Aluminum Oxide) with Ca2Al3(SiO4)3(OH)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Basalt
Basalt (Aphanitic Mafic Volcanic Rock)
Chert Nodule (Flint)
Microcrystalline Quartz (SiO2)
Basalt with Mineral Vein (Cobble)
Basalt (with likely Quartz/Calcite vein)
Quartzite (Iron-stained)
Metamorphosed Quartz-rich Rock (SiO2)
Marble
Recrystallized Calcite (CaCO3) Rock
Chert (specifically Flint or Dark Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Rutilated Quartz
Quartz (SiO2) with Rutile inclusions (TiO2)
Diamond
Diamond (C)
Chalcedony
Chalcedony (SiO₂)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
Quartzite Pebble
Quartzite (SiO2)
Iron Ore (Limonite and Hematite)
Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Chert (Commonly known as Flint)
Microcrystalline Quartz (SiO2)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Agate Geode
Chalcedony (SiO2 - Silicon Dioxide)
Banded Agate (with possible Chalcedony layers)
Silicon dioxide (SiO2)
Kimberlite
Kimberlite (Porphyritic Peridotite)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Fluorite (Green)
Fluorite (Calcium Fluoride, CaF2)
Quartz vein in Host Rock
Crystalline Silicon Dioxide (SiO2) in Lithic Matrix
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
Basalt
Extrusive Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)
Topaz
Topaz (Al2SiO4(F,OH)2)
Honey Calcite
Calcium Carbonate (CaCO3)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Sandstone
Arenite (composed primarily of SiO2)