Quartz Geode (Druzy)
Crystalline Silicon Dioxide (SiO2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Quartz Geode (Druzy)
Crystalline Silicon Dioxide (SiO2)
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2) with iron oxide impurities
Red Carnelian
Carnelian (Silicon Dioxide, SiO2)
Quartz (Chert/Chunky Chalcedony)
Silicon Dioxide (SiO2)
Druzy Quartz Geode (Vug)
Silicon Dioxide (SiO2)
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Fluorite
Fluoride (Calcium Fluoride - CaF2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2 - Chalcedony colored by Iron Oxide)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Blue Chalcedony
Silicon Dioxide (SiO2)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Jasper with Iron Staining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jasper (Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Zircon
Zircon (ZrSiO4)
Quartz
Quartz (SiO2)
Orange Calcite
Calcite (CaCO3)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Red Jasper (possibly Mookaite)
Silicon Dioxide (SiO2) with Hematite inclusions
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
Chalcedony
Chalcedony (SiO2)
Chalcedony on Matrix
Silicon Dioxide (SiO2)
Yellow Chalcedony (common opal or chert variant)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Hematite impurities)
Agate Nodule / Weathered Chert
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
Carnelian (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (SiO2) - variety: Chalcedony
Yellow Jasper
Chalcedony (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper (possibly Carnelian)
Silicon Dioxide (SiO2) with Hematite impurities
Yellow Jasper
Chalcedony (SiO2) with iron oxide inclusions
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Amethyst with Marcasite accents
Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)