Quartz (likely Rose or Milky Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Quartz (likely Rose or Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Tumbled jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
Tumbled brown quartz/chalcedony (probable)
Quartz, SiO₂; possibly brown chalcedony or jasper
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Carnelian
Carnelian (a variety of Chalcedony, SiO ₂)
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Red Granite
Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)
Tumbled chalcedony (likely moss or dendritic agate)
Microcrystalline quartz, SiO₂, with iron-oxide inclusions
Green Aventurine
Aventurine (variety of Quartz - SiO2)
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
Chalcedony
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
Polished brecciated jasper pebble
Microcrystalline quartz (SiO₂), with iron-oxide inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Pink Amethyst (or Pink Quartz)
Silicon Dioxide (SiO2) with trace inclusions
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Agate
Chalcedony (Cryptocrystalline variety of Quartz, SiO2)
Agate
Chalcedony (cryptocrystalline variety of Quartz, SiO2)
Agate (Slab)
Agate (Cryptocrystalline variety of Quartz, SiO2)
Carnelian
Carnelian (Cryptocrystalline variety of Quartz, SiO2)
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Blue Chalcedony
Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)
Blue Dyed Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Agate
Agate (Cryptocrystalline Variety of Quartz, SiO2)
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Agate
Agate (a cryptocrystalline variety of Quartz, SiO₂)
Banded Agate (Lace Agate)
Agate (Variety of Cryptocrystalline Quartz), SiO2
Jasper
Silicon dioxide (SiO2)
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
Green Jasper
Microcrystalline Quartz (SiO2)
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusion
Silicon Dioxide (SiO2)
Green Quartz (Aventurine or Prase)
Silicon Dioxide (SiO2) with inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)