Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with Fe3+ impurities
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with Fe3+ impurities
Jasper Pendant
Silicon dioxide (SiO2) with impurities
Rose Quartz Druzy
Silicon Dioxide (SiO2)
Quartz (likely a weathered/tumbled piece)
Quartz (SiO₂)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Red Jasper
Silicon dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2) with traces of Titanium, Manganese, or Iron
Rose Quartz
SiO2 (Silicon Dioxide with trace amounts of titanium, iron, or manganese)
Smoky Quartz
Silicon Dioxide (SiO2)
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
Banded Onyx (Mexican Onyx / Travertine)
Calcite (CaCO3) - Banded Travertine
Blue Quartzite
Quartzite (primarily SiO2) with inclusions like Dumortierite or Magnesio-riebeckite
Yellow Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with trace Iron impurities
Agate and Chalcedony Assortment
Silicon Dioxide (SiO2)
Chrysoprase
Chrysoprase (a variety of Chalcedony, SiO₂)
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Purple Aventurine
Quartzite with Lepidolite (SiO2 + K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Jasper with Quartz Druzy
Silicon Dioxide (SiO2)
Pink Quartz / Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Rose Quartz
Silicon Dioxide (SiO2) containing trace amounts of titanium, iron, or manganese
Quartz Geode
Silicon Dioxide (SiO2) within a secondary sedimentary structure
Quartz (Iron-stained or Orange Quartz)
Silicon Dioxide (SiO2)
Quartz (Microcrystalline/Gravel)
Silicon Dioxide (SiO2)
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Agate
Silicon Dioxide (SiO2)
Snowflake Obsidian
Volcanic Glass with Spherulite Inclusions (primarily SiO2)
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Mudstone)
Microcrystalline Quartz (SiO2)
Quartz with inclusions
SiO2
Smoky Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)