Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
Learn about Non Geological in the encyclopedia
View all →
Granite
Phaneritic intrusive igneous rock (Granite)
igneous
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Chrysotile Serpentine (Asbestos in Matrix)
Chrysotile Mg3Si2O5(OH)4
metamorphic
Zoisite with Ruby
Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)
metamorphic
Rose Quartz
Quartz (Silicon Dioxide, SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartzite
Quartzite (chiefly SiO2)
metamorphic
River Rock (Quartzite)
Quartzite
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite with Quartz Vein
Metamorphosed Quartz-rich Sandstone (SiO2)
metamorphic
Quartzite
Quartzite (predominantly SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Amber
Succinurite (C10H16O)
mineraloid
Quartzite Cobble
Metamorphic Quartz-rich Rock (SiO2)
metamorphic
Fossil Shark Tooth (Sand Tiger or Mackerel Shark)
Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate
sedimentary
Obsidian
Volcanic Glass (SiO2 with impurities)
igneous
Quartzite Pebble
Quartzite (SiO2 with iron oxide staining)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Black Obsidian
Volcanic Glass (SiO2)
igneous
Blue Lace Agate
Silicon Dioxide (SiO2)
gemstone
Obsidian
Volcanic Glass (SiO2)
igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Chert (Arrowhead/Projectile Point)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Precious Opal
Hydrated Silica (SiO2·nH2O)
mineraloid
Libyan Desert Glass
Natural Silica Glass (SiO2 with minor iron and titanium)
mineraloid
Apache Tear
Obsidian (Hydrated Silica Rich Volcanic Glass)
igneous
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
igneous
Hematite or Goethite-rich Ironstone
Ironstone (Oxidized Iron Ore)
sedimentary
Conglomerate
Conglomerate
Sedimentary Rock
Pink Quartzite
Quartzite (SiO2) with trace Iron Oxides
metamorphic
Red Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Quartzite with Quartz Veining
Meta-quartzite (composed primarily of SiO2)
metamorphic
Amber
Succinates (C10H16O)
mineraloid
Amber
Succinates
mineraloid
Snowflake Obsidian
Volcanic Glass (spherulitic obsidian)
igneous
Quartzite
Quartzite (SiO2)
metamorphic