Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Category
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (often called Flint for dark variants)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
Banded Agate
Agate (Cryptocrystalline variety of Silica, SiO2)
Chert (Tan/Yellow variety)
Microcrystalline quartz (SiO2)
Blue Goldstone
Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal variant or Chert/Flint)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (often called Flint or River Stone)
Microcrystalline Quartz (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Green Chert
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Banded Agate (specifically Sardonyx Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
Banded Agate (specifically Botswana Agate appearance)
Silicon Dioxide (SiO2) - variety of Chalcedony
Chert (White Chert/Flint)
Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2), flavored by Nickel
White Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milk Quartz (Tumbled)
Silicon Dioxide (SiO2)
Prase Quartz on Feldspar
Quartz (Silicon Dioxide, SiO2) with Hedenbergite inclusions on Potassium Feldspar (KAlSi3O8)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)