Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Synthetic Polymer (Polylactic Acid)
Browse synthetic polymer (polylactic acid) specimens identified by the Rock Identifier community.
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Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Granite
Granitoid
igneous
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
sedimentary
Milky Quartz
Quartz (SiO2)
mineral
Charoite
K(Ca,Na)2Si4O10(OH,F) · nH2O
mineral
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Conglomerate
Clastic sedimentary rock (Polymictic Conglomerate)
sedimentary
Granite
Granite (Felsic Intrusive)
igneous
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Breciated Chert
Silicon Dioxide (SiO2) with Clastic Structure
sedimentary
Puddingstone (Gowganda)
Jasper-clast Polymictic Conglomerate (Gowganda Formation)
sedimentary
Rose Quartz
SiO2 (Crystalline Quartz with trace inclusions)
mineral
Quartzite Pebble
Quartzite (SiO2 based)
metamorphic
Amber
Succinite (Resin)
mineral
Basalt (Road Gravel)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Black Beauty Meteorite
NWA 7034 (Northwest Africa 7034)
igneous
Amber
Succinite (approximate formula C10H16O)
mineraloid
Mixed River Pebbles
Clastic Sedimentary Alluvial Deposit / Polymictic Conglomerate Clasts
sedimentary
Amber
Succinrite (Organic Gemstone)
mineraloid
Amber
Succinite (Organic Mineraloid) - C10H16O
mineral
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Organic / Biological
Ferruginous Quartz (Iron-stained Quartz)
Quartz with Iron Oxide inclusions (SiO2 with Fe2O3)
mineral
Ferruginous Sandstone (Ironstone)
Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)
sedimentary