Chert / Flint Nodules
Cryptocrystalline Quartz (SiO2)
Category
Browse mineral, specifically a cryptocrystalline quartz variety specimens identified by the Rock Identifier community.
Chert / Flint Nodules
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Chert (Chert Nodule with Cortex)
Microcrystalline Quartz (SiO2)
Agate (or Chalcedony)
Silicon Dioxide (SiO2)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Rose Quartz Chips
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
SiO2 (Silicon Dioxide with Iron impurities)
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silica / Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Cloudy Quartz
Quartz (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Agate (specifically Botswana or Lake Superior style Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Milky Quartz (Water-Worn Pebble)
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Ruby Fuchsite / Ruby in Fuchsite
Ruby (Al2O3 variety corundum) and Fuchsite (K(Al,Cr)2AlSi3O10(OH)2 - a chromium-rich variety of muscovite mica) in Quartz matrix
Tiger's Eye
Tiger's Eye (a variety of Chalcedony, which is cryptocrystalline quartz). Chemical Formula: SiO2 with inclusions of crocidolite fibers.
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Jasper (specifically Oolitic or Brecciated Jasper)
Silicon Dioxide (SiO₂)
Citrine Quartz
Silicon Dioxide (SiO2)
Chert (Pink Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 with iron oxide inclusions)
Chert (Chert Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper
Silicon dioxide (SiO2)