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- Grandreefite abstract "Grandreefite is a rare secondary lead sulfate-fluoride mineral with a general chemical formula, Pb2SO4F2. It is named for the location in which it was discovered in 1989, the Grand Reef Mine in Graham County, Arizona. Grandreefite is monoclinic, falling in the 2/m symmetry group. Crystallographically this means, grandreefite has three axes of unequal length, with two angles at 90° to one another and a third, obtuse angle. The 2/m symmetry group indicates a two-fold axis with a perpendicular mirror plane. Grandreefite was originally classified as an orthorhombic mineral but was determined monoclinic instead upon further analysis. Pseudograndreefite, one of three other newly discovered minerals in 1989 at the Grand Reef Mine site, has orthorhombic crystallography. Optically, grandreefite is an anisotropic mineral, meaning the velocity of light varies depending on the direction through which it is passing through the mineral. Its calculated relief, i.e. its relative difference in index of refraction compared to the surrounding medium's index of refraction, is 1.96–1.98; and its birefringence is .025. Grandreefite, while not a valuable mineral in terms of commercial use, is useful in the sense that it is a good indicator of the very specific environment in which it forms and therefore the same conditions required to produce minerals similar to it in structure, composition, etc. For example, its structure is very similar to that of lanthanide oxide sulfates and therefore may be used to help better describe them. The Grand Reef Mine is located near a large granitic intrusion. Grandreefite is usually found in the mine in isolated veins containing hydrothermal copper, silver, and lead minerals hosted in oxidized breccias.".
- Grandreefite wikiPageID "28835237".
- Grandreefite wikiPageLength "3674".
- Grandreefite wikiPageOutDegree "22".
- Grandreefite wikiPageRevisionID "545999551".
- Grandreefite wikiPageWikiLink Breccia.
- Grandreefite wikiPageWikiLink Category:Lead_minerals.
- Grandreefite wikiPageWikiLink Category:Sulfate_minerals.
- Grandreefite wikiPageWikiLink Copper.
- Grandreefite wikiPageWikiLink Fluoride.
- Grandreefite wikiPageWikiLink Graham_County,_Arizona.
- Grandreefite wikiPageWikiLink Granite.
- Grandreefite wikiPageWikiLink H-M_symbol.
- Grandreefite wikiPageWikiLink Hermann–Mauguin_notation.
- Grandreefite wikiPageWikiLink Hydrothermal.
- Grandreefite wikiPageWikiLink Hydrothermal_circulation.
- Grandreefite wikiPageWikiLink Intrusion.
- Grandreefite wikiPageWikiLink Lanthanide.
- Grandreefite wikiPageWikiLink Lead.
- Grandreefite wikiPageWikiLink Lead(II)_sulfate.
- Grandreefite wikiPageWikiLink Lead_sulfate.
- Grandreefite wikiPageWikiLink Mineral.
- Grandreefite wikiPageWikiLink Monoclinic.
- Grandreefite wikiPageWikiLink Monoclinic_crystal_system.
- Grandreefite wikiPageWikiLink Orthorhombic.
- Grandreefite wikiPageWikiLink Orthorhombic_crystal_system.
- Grandreefite wikiPageWikiLink Redox.
- Grandreefite wikiPageWikiLink Silver.
- Grandreefite wikiPageWikiLink Space_group.
- Grandreefite wikiPageWikiLink Sulfate_minerals.
- Grandreefite wikiPageWikiLink Vein_(geology).
- Grandreefite wikiPageWikiLinkText "Grandreefite".
- Grandreefite 2v "23".
- Grandreefite category Sulfate_minerals.
- Grandreefite cleavage "None".
- Grandreefite color "Colorless".
- Grandreefite formula "Pb2SO4F2".
- Grandreefite fracture "Conchoidal".
- Grandreefite gravity "6.96".
- Grandreefite hasPhotoCollection Grandreefite.
- Grandreefite luster "Subadamantine".
- Grandreefite mohsScaleHardness "2.5".
- Grandreefite name "Grandreefite".
- Grandreefite opticalProperties "Transparent".
- Grandreefite opticalprop "Biaxial".
- Grandreefite other "Decomposes in water".
- Grandreefite refractive "nα=1.872, nβ=1.873, nγ=1.895".
- Grandreefite streak "White".
- Grandreefite strunz "7".
- Grandreefite symmetry H-M_symbol.
- Grandreefite symmetry Hermann–Mauguin_notation.
- Grandreefite symmetry "Monoclinic prismatic".
- Grandreefite symmetry "Space group: A2/a".
- Grandreefite system Monoclinic.
- Grandreefite system Monoclinic_crystal_system.
- Grandreefite tenacity "Brittle".
- Grandreefite twinning "Polysynthetic twins visible under cross polarized light".
- Grandreefite unitCell "a=8.667 Å, b=4.4419 Å, c= 14.242 Å, β=107.448, V=523.15 Å3".
- Grandreefite wikiPageUsesTemplate Template:Citation_style.
- Grandreefite wikiPageUsesTemplate Template:Infobox_mineral.
- Grandreefite wikiPageUsesTemplate Template:Reflist.
- Grandreefite subject Category:Lead_minerals.
- Grandreefite subject Category:Sulfate_minerals.
- Grandreefite hypernym Mineral.
- Grandreefite type Article.
- Grandreefite type ChemicalSubstance.
- Grandreefite type Mineral.
- Grandreefite type Article.
- Grandreefite type Sulfate.
- Grandreefite type ChemicalObject.
- Grandreefite type Thing.
- Grandreefite type Q7946.
- Grandreefite comment "Grandreefite is a rare secondary lead sulfate-fluoride mineral with a general chemical formula, Pb2SO4F2. It is named for the location in which it was discovered in 1989, the Grand Reef Mine in Graham County, Arizona. Grandreefite is monoclinic, falling in the 2/m symmetry group. Crystallographically this means, grandreefite has three axes of unequal length, with two angles at 90° to one another and a third, obtuse angle.".
- Grandreefite label "Grandreefite".
- Grandreefite sameAs Grandreefite.
- Grandreefite sameAs m.0dd8zs9.
- Grandreefite sameAs Q3775698.
- Grandreefite sameAs Q3775698.
- Grandreefite wasDerivedFrom Grandreefite?oldid=545999551.
- Grandreefite isPrimaryTopicOf Grandreefite.
- Grandreefite name "Grandreefite".