Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Category
Mineral With Metamorphic Or Sedimentary Host
Browse mineral with metamorphic or sedimentary host specimens identified by the Rock Identifier community.
Learn about Mineral With Metamorphic Or Sedimentary Host in the encyclopedia
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Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Lodolite (Garden Quartz)
Silicon Dioxide (SiO2) with inclusions (Chlorite, Hematite, etc.)
mineral
Greenstone
Metamorphic Rock (Greenschist facies)
metamorphic
Chalcedony with Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Labradorite (tumbled)
Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)
Mineral
Agate
Agate (a cryptocrystalline variety of Quartz, SiO₂)
Mineral
Quartz Vein in Gneiss or Basalt
Milky Quartz (SiO2) within Metamorphic Host Rock
Metamorphic or Igneous with Mineral Inclusion
Tumbled Agate
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Precious Opal
Hydrated Silica (SiO2·nH2O)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Tourmaline (Schorl or Dravite) on Matrix
Complex Borosilicate - Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH,F)4
mineral
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Fossilized Shark Tooth in Matrix
Otodus sp. (likely Otodus obliquus)
sedimentary
Chalcedony Geode (Botryoidal Agate)
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Sandstone
Hydrothermal Quartz (SiO2) in Arenite
sedimentary
Ironstone Concretion (Coprolite-like)
Goethite/Hematite Siderite Spheroid (FeCO3 or FeO(OH))
sedimentary
Chalcedony (Agate / Quartz Nodule)
Silicon Dioxide (SiO2)
mineral
Corundum
Corundum (Al2O3)
Mineral
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Quartz-rich chalcedony (likely silicified rock)
Microcrystalline quartz, SiO₂; possibly silicified limestone or jasper
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Limonite host rock
mineral
Chalcedony Agate / Carnelian nodules in Matrix
SiO2 (Silicon Dioxide) with iron oxide inclusions
mineral
Pink Chalcedony (Agate/Jasper blend)
Silicon Dioxide (SiO₂)
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Milky quartz with dark mineral veins
Quartz, silicon dioxide (SiO₂), likely massive vein quartz; dark veins may be chlorite, mica, iron/manganese oxides, or a sulfide mineral
mineral
Milky Quartz / Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Common Opal with Host Rock
Opal (Hydrated silica, SiO2·nH2O)
mineral
Quartz on Host Rock
Silicon Dioxide (SiO2)
Mineral Specimen
Smoky Quartz with Chert
Silicon Dioxide (SiO2)
mineral
Sandstone Concretion
Arenaceous concretion (primarily SiO2 with Fe2O3 staining)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Fossilized Insect in Nodular Matrix
Invertebrata / Insecta fossil in sedimentary concretion
fossil
Concretion
Siderite or Ironstone Concretion
sedimentary
Massive Quartz with Host Rock
Silicon Dioxide (SiO2)
mineral
Likely quartz-rich mineral fragment
Quartz (SiO₂), possibly iron-stained or included quartz
mineral