Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Category
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Green Aventurine
Aventurine (a variety of Quartz, SiO2)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
Agate Geode
Banded Chalcedony (Silicon Dioxide, SiO2) with Quartz crystals
Granite
Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)
Quartz (Chalcedony)
Silicon Dioxide (SiO2)
Pink Granite
Granite (Phaneritic Felsic Igneous Rock)
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
Crazy Lace Agate
Chalcedony (SiO2)
Gray Agate with Druzy Quartz Geode
Cryptocrystalline Quartz (SiO2)
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Chert (specifically Banded Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Banded Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Flint with Chalk Cortex
Chert (Microcrystalline Quartz, SiO2)
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
Larimar (Pectolite)
NaCa2Si3O8(OH)
Larimar (Pectolite)
NaCa2Si3O10(OH) (Sodium Calcium Silicate Hydroxide)
Banded Agate (specifically Lake Superior Agate style)
Agate (Cryptocrystalline Quartz, SiO2)
Rose Quartz
Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Jasper / Agate / Chalcedony
Cryptocrystalline quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) - variety Jasper
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Tumbled carnelian (orange chalcedony)
Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by dispersed iron oxides
Carnelian
Orange chalcedony, microcrystalline quartz (SiO₂)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Chert (Iron-stained)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Tumbled agate/chalcedony pebble
Microcrystalline quartz (SiO₂), likely brown/banded agate or jasper
Yellow Jasper
SiO2 (Silicon Dioxide)
Chalcedony
Silicon dioxide (SiO2)
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
Chert (specifically Jasper or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper (Brown / Ironstone Jasper)
Microcrystalline Quartz (SiO2 with iron oxide inclusions)