Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Category
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Banded Agate (Onyx type)
Silicon Dioxide (SiO2)
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Chert
Silicon dioxide (SiO2)
Epidote with Quartz
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Lace Agate (specifically Red Lace Agate)
Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz
Red Jasper
Jasper (Silica/Silicon Dioxide, SiO2 plus iron inclusions)
Amazonite
Microcline (KAlSi3O8, a variety of Potassium Feldspar)
Yellow Quartz (Polished)
Silicon Dioxide (SiO2) with iron inclusions
Blue Quartz (specifically Dumortierite Quartzite)
Silicon Dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
Diorite (Gneissic)
Diorite
Quartz (Rose or Milky)
Silicon Dioxide (SiO2)
Flint / Chert
Silicon Dioxide (SiO2)
Flint / Chert
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Jasper (likely Kambaba or Crocodile Jasper variety)
Silicon Dioxide (SiO2) with inclusions
Citrine
SiO2 (Silicon Dioxide)
Blue John Fluorite
Fluorite (Calcium Fluoride), CaF2
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Actinolite
Ca2(Mg,Fe)5Si8O22(OH)2
Carnelian
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Aventurine
Silicon Dioxide (SiO2) with inclusions
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
Tourmalinated Quartz
Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)
Amethyst (Tumbled)
Amethyst (SiO2 with iron impurities)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Yellow Jasper
Jasper, a microcrystalline variety of Quartz (SiO2) with iron inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
Imperial Topaz
Al2SiO4(F,OH)2 (Fluorine-bearing Aluminum Silicate)