Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Category
Mineral (Specifically A Cryptocrystalline Variety Of Quartz)
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically A Cryptocrystalline Variety Of Quartz) in the encyclopedia
View all →
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions
sedimentary
Polished jasper pebble, likely red/orange jasper
Microcrystalline quartz (SiO₂), opaque variety commonly colored by iron oxides
mineral
Ruby in Fuchsite
Corundum (Al2O3) in Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Brown agate (chalcedony)
Microcrystalline quartz, SiO₂; likely iron-stained chalcedony
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Carnelian Agate
Silicon Dioxide (SiO2)
mineral
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Amazonite
Amazonite (KAlSi3O8)
mineral
Chrysoprase
Chalcedony (cryptocrystalline SiO2 variety)
Mineral
Chalcedony Bangle
SiO2
gemstone
Chalcedony (Agate / Jasper Specimen)
Silicon Dioxide (SiO2)
mineral
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Banded Agate (Onyx variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
igneous
Green Jasper on Host Rock
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony Pebble / Rough Agate
Silicon Dioxide (SiO2)
mineral
Chert (specifically Flint)
Silicon Dioxide (SiO2)
sedimentary
Likely tumbled jasper or iron-rich chert
Microcrystalline quartz (SiO₂), possibly colored by iron oxides
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
sedimentary
Red Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron Oxide impurities (Hematite)
sedimentary
Lake Superior Agate
SiO2 (Quartz variety chalcedony)
gemstone
Granite (Pink/Red variety)
Felsic Intrusive Igneous Rock
igneous
Chalcedony with Quartz
Silicon Dioxide (SiO2)
mineral
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
Tumbled jasper (likely yellow/brown jasper)
Microcrystalline quartz, SiO₂, colored by iron oxides and other impurities
mineral
Likely polished/tumbled quartz-rich specimen
Quartz, silicon dioxide (SiO₂), possibly an agate or chalcedony variety
mineral
Chert (specifically Banded Chert or Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Green Apophyllite
Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O
mineral
Moonstone (with Tourmaline/Mica)
Orthoclase/Albite Feldspar (KAlSi3O8 / NaAlSi3O8)
mineral
Tumbled carnelian (reddish-orange chalcedony)
Chalcedony, microcrystalline quartz (SiO₂), colored by iron oxides
mineral
Red Quartzite
Quartzite (mostly SiO2)
metamorphic
Sunstone (Oregon Sunstone)
Labradorite (Feldspar variety) - (Ca, Na)(Al, Si)4O8
mineral
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
sedimentary
Blue Lace Agate
Cryptocrystalline Quartz (SiO2)
mineral
Red Jasper with Hematite
Impure Microcrystalline Quartz (SiO2) with Hematite (Fe2O3)
sedimentary