Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
mineral
Category
Sedimentary (Microcrystalline Quartz)
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Microcrystalline Quartz) in the encyclopedia
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Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Banded Agate (Lake Superior or Jasper-Agate)
Silicon dioxide (SiO2)
mineral
Quartzite Pebble (with possible inclusion)
Metamorphosed Quartz Sandstone (SiO2 with impurities)
metamorphic
Ocean Jasper or Orbicular Jasper
SiO2
mineral
Dinosaur Bone (Gembone)
Agatized Dinosaur Bone (Silicified Paleo-osteoid)
metamorphic
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2 equivalent)
metamorphic
Crazy Lace Agate
Silicon Dioxide (Microcrystalline Quartz) - SiO2
mineral
Indian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Crazy Lace Agate
Banded Chalcedony (Microcrystalline Quartz, SiO2)
mineral
Amber Agate (Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Carnelian Agate (with Quartz/Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂)
mineral
Quartz Conglomerate
Quartz Conglomerate (clastic sedimentary rock)
sedimentary
Yellow Aventurine
Silica (SiO2) with inclusions
mineral
Gray Agate
Cryptocrystalline Quartz (SiO2)
mineral
Quartzite
Metamorphic Quartz (SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
River Cobble (likely Quartzite)
Metamorphosed Sandstone (SiO2)
metamorphic
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble (Water-worn Quartzite)
Silicon Dioxide (SiO2)
metamorphic
Pyrite in Quartz
Iron Disulfide (FeS2) in Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Basalt with Quartz Vein
Basalt containing a microcrystalline quartz (SiO2) intrusion
igneous
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral