Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Category
Metamorphic (Localized) Or Sedimentary
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper (likely Kambaba or Crocodile Jasper variety)
Silicon Dioxide (SiO2) with inclusions
sedimentary
Jasper (brecciated or orbicular variety)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary/mineral
Chert with Asphaltum (or Tar)
Silica (SiO2) with natural Bitumen/Asphaltum
sedimentary
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with manganese/iron inclusions
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide impurities)
sedimentary
Botryoidal Chalcedony (likely Chert or Agatized Coral)
Silicon Dioxide (SiO2)
mineral
Chalcedony with Matrix
Silicon Dioxide (SiO2)
mineral
White Agate (Chalcedony)
Agate (Silicon Dioxide - SiO2)
mineral
Agate Geode
Silicon Dioxide (SiO2)
mineral
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Banded Agate (Onyx variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide / Cryptocrystalline Quartz (SiO2)
mineral
Jasper (specifically Fancy or Polychrome Jasper)
Silicon Dioxide (SiO2) - Chalcedony
Sedimentary
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Jasper (Multi-colored) / Sea Glass Slag
Silicon Dioxide (SiO2) with impurities of Iron Oxide
Sedimentary (if natural Jasper) or Artificial (if Slag)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities such as Fe2O3
sedimentary
Agate (specifically Lace Agate or Banded Agate)
Silicon Dioxide (SiO2)
mineral
Pink Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineraloid
Agate Geode
Chalcedony (cryptocrystalline SiO2)
mineral
Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Brown Jasper
Silicon Dioxide (SiO2)
sedimentary
Basalt and Quartz Pebble
Basalt (Igneous) and Quartzite/Quartz (SiO2) pebble
igneous and sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony replacement) SiO2
sedimentary
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary
Chalcedony (Yellow/Honey variety)
Microcrystalline Quartz (SiO2)
mineral
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with iron oxide and other mineral impurities
sedimentary (chemical/biological origin)
Jasper
Jasper (Silicon Dioxide) - SiO2
sedimentary
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Carnelian
Carnelian (Silica, SiO2)
mineral
Botryoidal Chalcedony (likely Desert Rose/Agatized Geode Crust)
Silicon Dioxide (SiO2)
mineral
Botryoidal Chalcedony (Druzy Quartz)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Mineral (variety of Chalcedony/Quartz)