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| rdf:type
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| rdfs:label
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| rdfs:comment
| - Almandine, also known incorrectly as almandite, is a species of mineral belonging to the garnet Group. The name is a corruption of alabandicus, which is the name applied by Pliny the Elder to a stone found or worked at Alabanda, a town in Caria in Asia Minor. Almandine is an iron alumina garnet, of deep red color, inclining to purple. It is frequently cut with a convex face, or en cabochon, and is then known as carbuncle. Viewed through the spectroscope in a strong light, it generally shows three characteristic absorption bands.
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| sameAs
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| dcterms:subject
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| dbkwik:ceramica/pr...iPageUsesTemplate
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| dbkwik:elder-scrol...iPageUsesTemplate
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| dbkwik:elderscroll...iPageUsesTemplate
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| Category
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| opticalprop
| - Single refractive, and often anomalous double refractive
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| mohs
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| Gravity
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| Name
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| dispersion
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| ImageSize
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| dbkwik:resource/-5nnlSkhCAKG_Cspnu7I6Q==
| - usually at 504, 520, and 573nm, may also have faint lines at 423, 460, 610 and 680-690nm
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| formula
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| Polish
| - vitreous to subadamantine
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| pleochroism
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| Color
| - reddish orange to red, slightly purplish red to reddish purple and usually dark in tone
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| fluorescence
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| cleavage
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| fracture
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| refractive
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| luster
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| birefringence
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| wikipage disambiguates
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| abstract
| - Almandine, also known incorrectly as almandite, is a species of mineral belonging to the garnet Group. The name is a corruption of alabandicus, which is the name applied by Pliny the Elder to a stone found or worked at Alabanda, a town in Caria in Asia Minor. Almandine is an iron alumina garnet, of deep red color, inclining to purple. It is frequently cut with a convex face, or en cabochon, and is then known as carbuncle. Viewed through the spectroscope in a strong light, it generally shows three characteristic absorption bands. Almandine is one end-member of a mineral solid solution series, with the other end member being the garnet pyrope. The almandine crystal formula is: Fe3Al2(SiO4)3. Magnesium substitutes for the iron with increasingly pyrope-rich composition. Almandine, Fe2+3Al2Si3O12, is the ferrous iron end member of the class of garnet minerals representing an important group of rock-forming silicates, which are the main constituents of the Earth's crust, upper mantle and transition zone. Almandine crystallizes in the cubic space group Ia3d, with unit-cell parameter a ≈ 11.512 Å at 100 K. Almandine is antiferromagnet with the Néel temperature of 7.5 K. It contains two equivalent magnetic sublattices
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