Agate (various color varieties)
SiO₂ (Silicon Dioxide)
Category
Browse mineral (specifically a variety of chalcedony, which is a microcrystalline quartz) specimens identified by the Rock Identifier community.
Agate (various color varieties)
SiO₂ (Silicon Dioxide)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
Red Jasper Concretion
Cryptocrystalline Quartz (SiO2)
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Argetine Blue Agate (Chalcendony variant)
Silicon Dioxide (SiO₂)
Red Jasper with Quartz and Hematite
Silicon Dioxide (SiO2) with Ferric Iron inclusions
Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)
Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates
Chalcedony (Botryoidal Agate vein)
Chalcedony (Microcrystalline Quartz) - SiO2
Yellow Agate
Silicon Dioxide (SiO2)
Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Leopard Skin Jasper
Chalcedony (cryptocrystalline Quartz)
Yellow Jasper
Silicon Dioxide (SiO2)
Onyx
Onyx (a variety of Chalcedony, SiO₂)
Blue Lace Agate (often dyed)
Silicon dioxide (SiO2) - variety of chalcedony
Blue Agate (Dyed)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Black Veined Jasper (Spiderweb Jasper)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO₂)
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO₂)
Blue Lace Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
Green Agate
Silicon dioxide (SiO₂)
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
Blue Chalcedony and Picture Jasper Beads
Blue Chalcedony (SiO2), Picture Jasper (SiO2)
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with impurities)
Fancy Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Blue Lace Agate
Chalcedony (SiO2)
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Agate
Agate (a variety of Chalcedony, SiO2)
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Hematite) inclusions
Carnelian
Carnelian (SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
White Chalcedony (Agate)
Silicon Dioxide (SiO2)
Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
Jasper (Zebra Jasper)
Silicon Dioxide (SiO2) with impurities
Jasper
Silicon Dioxide (SiO2) - a variety of Chalcedony (Cryptocrystalline Quartz)