Chalcedony in Matrix
Silicon Dioxide (SiO2)
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Chalcedony in Matrix
Silicon Dioxide (SiO2)
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
Chrysoprase
Silicon dioxide with nickel impurities (SiO2 + Ni)
Blue Chalcedony
Silicon Dioxide (SiO2)
Yellow Agate
Silicon Dioxide (SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Agate
Agate (Silicon Dioxide, SiO2)
Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)
Chalcedony (SiO2), Jasper (SiO2 with impurities)
Black Onyx
Silicon Dioxide (SiO2)
Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Agate (Chalcedony)
Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2)
Red Jasper
Jasper (Silicate mineral - SiO2)
Banded Calcite (often sold as Orange Onyx or Mexican Onyx)
Calcium Carbonate (CaCO3)
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon dioxide with hematite impurities (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities), SiO2
Agate
Silicon dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Agate (Carnelian-like)
Chalcedony (Silicon Dioxide, SiO2)
Chalcedony
Chalcedony (SiO2)
Jasper
Silicon dioxide (SiO2)
Chalcedony (variations like Agate or Jasper)
Chalcedony (SiO₂ - microcrystalline quartz)
Blue Lace Agate
Silicon Dioxide (SiO₂)
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
Green Jasper
Jasper (Silicon Dioxide, SiO2)
Agate
Silicon dioxide (SiO2)
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
Agate (Chalcedony Variation)
Silicon Dioxide (SiO2)
Agate (or Chalcedony)
Silicon Dioxide (SiO2)
Blue Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
Argetine Blue Agate (Chalcendony variant)
Silicon Dioxide (SiO₂)
Carnelian
Carnelian (SiO2)
Red Jasper
Silicon Dioxide (SiO2)
Yellow Agate
Silicon Dioxide (SiO2)
Geode with Quartz and possibly Jasper/Hematite
Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides
Gray Agate with Druzy Quartz Geode
Cryptocrystalline Quartz (SiO2)
Brown Agate
Silicon Dioxide (SiO2)