Gold Nugget Jewelry
Native Gold (Au)
mineral
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
Rose Quartz
Silicon Dioxide (SiO2) containing trace amounts of titanium, iron, or manganese
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Jade (Nephrite)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
mineral
Mother of Pearl and Onyx
Aragonite (Mother of Pearl) and Chalcedony (Onyx)
mineral
Fossiliferous Shale (with Vertebrate Bones)
Laminated Mudstone containing Fossilized Bone (Apatite)
sedimentary
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
man-made material
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Kyawthuite
Kyawthuite (Bi3+Sb5+O4)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ trace elements)
Mineral
Hexagonaria (Petoskey Stone)
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Basalt with Weathering Crust
Extrusive mafic volcanic rock
igneous
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Goethite)
mineral
Quartz (Sand Grain size)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz pebble)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Oolitic Chert
Silicon Dioxide (SiO2) with oolitic texture
sedimentary
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
metamorphic
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Fossilized Horn Coral
Order Rugosa (Rugose Coral)
sedimentary
Quartz (likely milky/gray variety)
Quartz (SiO₂)
Mineral
Quartz-veined Mudstone or Argillite
SiO2 (Quartz) in Siltstone/Mudstone matrix
sedimentary
Fossiliferous Limestone with Rugose Coral
Calcium Carbonate (CaCO3) featuring Rugosa (extinct order of solitary and colony corals)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Glauconitic Sandstone (Greensand)
Glauconitic quartz wacke or arenite
sedimentary
Granite
Phaneritic Igneous Rock (Granite)
igneous
Greenstone
Greenschist (commonly containing Chlorite, Actinolite, and Epidote)
metamorphic