Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix
igneous
Category
Mineral, Often Found As A Rock (Metamorphic)
Browse mineral, often found as a rock (metamorphic) specimens identified by the Rock Identifier community.
Charoite
K(Ca,Na)2Si4O10(OH,F)·H2O
metamorphic
Granite
Granite (Phaneritic igneous rock)
igneous
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
sedimentary
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Nephrite Jade
Nephrite (a variety of the Calcium magnesium iron silicate mineral series Actinolite), Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Carnelian Agate Nodule
Silicon Dioxide (SiO2) - Carnelian Chalcedony
mineral
Zebra Jasper
Silicon Dioxide (SiO2) with iron oxide and manganese inclusions
metamorphic
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
mineral
Quartz (Crystal Cluster)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Point
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Unakite
Epidotized Granite
metamorphic
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Labradorite
Labradorite, (Ca, Na)(Al, Si)4O8
mineral
Fulgurite
Fulgurite (Lechatelierite), amorphous SiO2
metamorphic
Glaucophane-bearing Schist (Blueschist)
Blueschist (Glaucophane-Lawsonite Schist)
metamorphic
Breccia
Breccia
sedimentary
Sandstone with Quartz Vein
Arenite with Quartz (SiO2) Infilling
sedimentary
Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions)
SiO2 with TiO2 inclusions (Quartz with Rutile)
Mineral
Sandstone with Iron Concretion
Arenite with Limonite/Goethite Concretion
sedimentary
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz (Peach/Orange variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Arkose)
Arenite (composed mainly of SiO2 with Feldspar)
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
Mineral
Green Tourmaline
Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
mineral