Quartzite (Gold-Yellow variety)
Quartzite (Silicon Dioxide, SiO2)
Category
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
Quartzite (Gold-Yellow variety)
Quartzite (Silicon Dioxide, SiO2)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartz Crystal (specifically a milky or semi-translucent single crystal point)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Chert (Tan/Buff Chert)
Microcrystalline Quartz (SiO2)
Sandstone (Quartz-rich)
Arenite (SiO2)
Sandstone (Ferruginous)
Arenite (variable SiO2 with Fe2O3 staining)
Sandstone
Arenite (SiO2 based)
Orthoclase Feldspar (Salmon variety)
Orthoclase, KAlSi3O8
Quartzite
Quartzite (SiO2)
Yellow Quartzite (River Cobble)
Quartzite (mainly SiO2)
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Milky Quartz (or Iron-Stained Quartz)
Quartz (Silicon Dioxide, SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Sandstone (Pebble)
Arenite (primarily SiO2)
Quartzite
Meta-quartzite (SiO2)
Chert (often called Flint in this variation)
Silicon dioxide (SiO2) - Microcrystalline quartz
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Sandstone
Arenite
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 predominantly)
Sandstone (Weathered Coastal Boulder)
Arenite (composed primarily of SiO2)
Limestone
Calcium Carbonate (CaCO3)
Ocherous Sandstone (Ferruginous Sandstone)
Ferruginous Arenite (SiO2 with Fe2O3)
Sandstone (Ferruginous)
Arenite (with Hematite/Limonite cement)
Sandstone
Arenite (primarily Quartz, SiO2)
Quartzite
Quartzite (primarily SiO2)
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Quartzite
Quartzite (primarily SiO2)
Chert (specifically Flint or Dark Chert)
Chert (SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide staining/cementing)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)
Quartzite
Quartzite (primarily SiO2)
Quartz Druze (on Matrix)
Silicon Dioxide (SiO2)
Mother of Pearl (Nacre)
Aragonite (layered with organic polymers), CaCO3
Rhodonite, Gray Moonstone, and White Feldspar Mix
Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)