Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Specifically A Variety Of Quartz
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Rose Quartz
Silicon dioxide with traces of titanium, iron, or manganese (SiO2)
mineral
Blue Lace Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
mineral
Chert / Flint (a variety of Chert)
Chert (SiO2)
Sedimentary Rock (technically a microcrystalline quartz mineral aggregate)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Jasper/Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Mineral
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
mineral
Quartz (likely a weathered/tumbled piece)
Quartz (SiO₂)
Mineral
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
mineral
Amazonite
Microcline (variety Amazonite), K(AlSi3O8)
mineral
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
mineral
Rough Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Peach Moonstone
Potassium Aluminum Silicate, KAlSi3O8
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Agate (specifically Moss or Plume Agate nodding toward Agatized Wood)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz (Chalcedony)
mineral
Red Jasper
Microcrystalline quartz (SiO2) with Hematite (Fe2O3) impurities
sedimentary
Labradorite
Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)
Mineral
Rose Quartz Druzy
Silicon Dioxide (SiO2)
mineral
Amazonite
Tectosilicate (variety of Microcline), K(AlSi3O8)
mineral
Jasper with Chert
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Blue Quartzite
Quartzite (primarily SiO2) with inclusions like Dumortierite or Magnesio-riebeckite
metamorphic
Jasper with Quartz Druzy
Silicon Dioxide (SiO2)
sedimentary
Emerald
Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.
Mineral
Snowflake Obsidian
Vitreous Volcanic Rock (Amorphous Silicate), SiO2
igneous
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Grey Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Orthoclase Feldspar (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
sedimentary
Dyed Agate Slice
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
mineral
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint)
Chert (Cryptocrystalline Silica, SiO2)
sedimentary
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Chert (specifically Flint or Common Opal/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically var. Flint or Jasper-rich Breccia)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Jasper or Flint type)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary