Dragon Stone (Dragon Blood Jasper)
Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Aragonite (variety 'Flos Ferri')
Aragonite (CaCO3)
Mineral
Conglomerate
Conglomerate (Detrital sedimentary rock)
sedimentary
Black Onyx
Chalcedony (SiO2 with inclusions)
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Chert (potentially Flint or Mudstone)
Microcrystalline Quartz (SiO2)
sedimentary
Citrine Quartz
Citrine (Silicon Dioxide - SiO2)
Mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Aluminum borate silicate)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Concretionary Sandstone
Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)
sedimentary
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Banded Agate (Onyx Variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Mookaite Jasper
Radiolarite (Silica-rich sedimentary rock featuring Hematite and Goethite)
sedimentary
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
mineral
Quartz (Drusy/Crystalline variety)
Silicon Dioxide (SiO2)
mineral
Chert (Gravel Bit)
Microcrystalline silica (SiO2)
sedimentary
Amethyst (Chevron Amethyst/Dream Amethyst)
Silicon Dioxide (SiO2) with trace Iron impurities
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Chert (variations include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Orthoceras Fossil in Limestone
Orthoceras regulare (Class Cephalopoda; Order Orthocerida)
sedimentary
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Chevron Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe3+)
mineral
Jasper
Jasper (Cryptocrystalline Quartz; SiO2)
sedimentary
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
igneous
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
sedimentary
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Milky Quartz (Silicon Dioxide, SiO2)
mineral