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- Cuprite abstract "Cuprite is an oxide mineral composed of copper(I) oxide Cu2O, and is a minor ore of copper.Its dark crystals with red internal reflections are in the isometric system hexoctahedral class, appearing as cubic, octahedral, or dodecahedral forms, or in combinations. Penetration twins frequently occur. In spite of its nice color it is rarely used for jewelry because of its low Mohs hardness of 3.5 to 4. It has a relatively high specific gravity of 6.1, imperfect cleavage and a brittle to conchoidal fracture. The luster is sub-metallic to brilliant adamantine. The "chalcotrichite" variety typically shows greatly elongated (parallel to [001]) capillary or needle like crystals forms.It is a secondary mineral which forms in the oxidized zone of copper sulfide deposits. It frequently occurs in association with native copper, azurite, chrysocolla, malachite, tenorite and a variety of iron oxide minerals. It is known as ruby copper due to its distinctive red color.Cuprite was first described in 1845 and the name derives from the Latin cuprum for its copper content.Cuprite is found in the Ural Mountains, Altai Mountains, and Sardinia, and in more isolated locations in Cornwall, France, Arizona, Chile, Bolivia, and Namibia.Cuprite as a gemstoneThough almost all crystals of cuprite are far too small to yield faceted gemstones, one unique deposit from Onganja, Southwest Africa, which was discovered in the 1970s, has produced crystals which were both large and gem quality. Virtually every faceted stone over one carat (0.2 gm) in weight is from this single deposit, which has long been mined out. The number of faceted gems over two carats (0.4 gm) is difficult to estimate, but according to Joel Arem, one-time curator for the Smithsonian National Gem and Mineral Collection in Washington DC, faceted cuprite of any size is considered one of the most collectible and spectacular gems in existence, with its deep garnet coloring and higher brilliance than a diamond. Only the gem's soft nature prevents it from being among the most valuable jewelry stones.".
- Cuprite thumbnail CupriteUSGOV.jpg?width=300.
- Cuprite wikiPageID "875205".
- Cuprite wikiPageRevisionID "539462191".
- Cuprite caption "Cuprite from Morenci, Arizona".
- Cuprite category Oxide_minerals.
- Cuprite cleavage "Fair in four directions forming octahedrons".
- Cuprite color "Dark red to conchineal red, sometimes almost black".
- Cuprite dana "4.1".
- Cuprite diaphaneity "Transparent, translucent".
- Cuprite formula "Cu2O".
- Cuprite fracture "Conchoidal to uneven".
- Cuprite gravity "6.14".
- Cuprite habit "Cubic, octahedral, and dodecahedral crystals; as hairlike capillary forms, earthy, compact granular and massive".
- Cuprite hasPhotoCollection Cuprite.
- Cuprite luster "Adamantine, sub-metallic, earthy".
- Cuprite mohs "3.5".
- Cuprite name "Cuprite".
- Cuprite opticalprop "Isotropic".
- Cuprite pleochroism "Visible".
- Cuprite refractive "n = 2.849".
- Cuprite streak "Shining metallic brownish-red".
- Cuprite strunz "4".
- Cuprite symmetry "Cubic".
- Cuprite system "Cubic hexoctahedral".
- Cuprite tenacity "Brittle".
- Cuprite twinning "Penetration twins".
- Cuprite unitCell "a = 4.2685 Å; V 77.77 ų; Z = 2".
- Cuprite subject Category:Alchemical_substances.
- Cuprite subject Category:Copper_minerals.
- Cuprite subject Category:Cubic_minerals.
- Cuprite subject Category:Oxide_minerals.
- Cuprite type ChemicalSubstance.
- Cuprite type Mineral.
- Cuprite type ChemicalObject.
- Cuprite type Thing.
- Cuprite comment "Cuprite is an oxide mineral composed of copper(I) oxide Cu2O, and is a minor ore of copper.Its dark crystals with red internal reflections are in the isometric system hexoctahedral class, appearing as cubic, octahedral, or dodecahedral forms, or in combinations. Penetration twins frequently occur. In spite of its nice color it is rarely used for jewelry because of its low Mohs hardness of 3.5 to 4.".
- Cuprite label "Cupriet".
- Cuprite label "Cuprit".
- Cuprite label "Cuprita".
- Cuprite label "Cuprita".
- Cuprite label "Cuprite".
- Cuprite label "Cuprite".
- Cuprite label "Cuprite".
- Cuprite label "Kupryt".
- Cuprite label "Куприт".
- Cuprite label "赤銅礦".
- Cuprite label "赤銅鉱".
- Cuprite sameAs Kuprit.
- Cuprite sameAs Cuprit.
- Cuprite sameAs Cuprita.
- Cuprite sameAs Cuprite.
- Cuprite sameAs Kuprit.
- Cuprite sameAs Cuprite.
- Cuprite sameAs 赤銅鉱.
- Cuprite sameAs Cupriet.
- Cuprite sameAs Kupryt.
- Cuprite sameAs Cuprita.
- Cuprite sameAs m.03krfz.
- Cuprite sameAs Q407335.
- Cuprite sameAs Q407335.
- Cuprite wasDerivedFrom Cuprite?oldid=539462191.
- Cuprite depiction CupriteUSGOV.jpg.
- Cuprite isPrimaryTopicOf Cuprite.
- Cuprite name "Cuprite".