Yellow Quartzite River Cobble
Meta-quartzite (SiO2 with iron oxide staining)
Category
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Yellow Quartzite River Cobble
Meta-quartzite (SiO2 with iron oxide staining)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (Primary mineral: SiO2)
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
Amber
Succinate (Fossilized Tree Resin)
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Obsidian
Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)
Quartz Vein Rock
Quartz (Silicon Dioxide, SiO2)
Amber
Succinite (fossilized resin)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Chert (variations include Flint/Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz with Chalcedony
Silicon dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Orange Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Wonderstone (Sandstone)
Silicified Quartz Sandstone with Iron Oxide staining
Ironstone Concretion (Limonite/Goethite)
Ironstone (primarily FeO(OH)·nH2O)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Chert (specifically Flint or Dark Chalcedony)
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (Silicon Dioxide) with inclusions - SiO2
Jasper with Manganese Dendrites
Silicon Dioxide (SiO2) with Oxide Mineral Inclusions
Picture Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
Chert (Nodular Chert)
Microcrystalline Silica (SiO2)
Red Jasper (Polished)
Silicon Dioxide (SiO2) with Hematite inclusions
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
Red Jasper (possibly Wonderstone)
Silicon Dioxide (SiO2) with iron oxide inclusions
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Rose Quartz
Silicon Dioxide (SiO2)
Marble
Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz Pebble (Iron-Stained)
Quartz (Silicon Dioxide - SiO2)
Quartz Pebble
Silicon dioxide (SiO2)
Banded Iron Formation (BIF)
Banded Iron Formation (Fe2O3 + SiO2)