Spessartine

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Spessartine

(from the Spessart range in the Federal Republic of Germany), a mineral of the garnet group, a manganese-containing aluminogarnet having the composition Mn₃AI₂[SiO₄]₃ and containing typical isomorphic impurities of Fe²⁺, Mg²⁺, Ca²⁺, and Y³⁺. Spessartine crystallizes in the cubic system, forming crystals typical of garnets or, frequently, compact granular masses. The color varies, depending on impurities, from light pink to red-brown. The mineral has a hardness on Mohs’ scale of 7–7.5 and a density of 3,800–4,280 kg/m³. Spessartine is most commonly encountered in garnet pegmatites, metamorphic rocks, and skarns.

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No references found			And then there's the Ramona Orange necklace, which consists of 63 colour-matched spessartine garnets, with 11 carats of diamonds that set off the garnets' intense orange. Romancing the stones: how one man's passion for gems led to a ... by Tait, Kimberly / ROM Magazine			spermatorrhea Spermatozoid Spermatozoon spermaturia spermicide spermidine spermine spermiogenesis Sperner set Sperner's theorem Spero, Nancy speromagnetic state sperone Sperry Corporation Sperry process Sperry Univac Sperry, Elmer Sperry, Elmer Ambrose Sperry, Roger Sperry, Roger W. Sperry, Roger Wolcott Sperry, Willard Learoyd sperrylite Speshnev, Nikolai Speshnev, Nikolai Aleksandrovich Spessartine Spessartite Speusippus spewing Spey Spey, River Speyer Speyer, Diet of 1529 Speyer, John of Spezia, La SPF SPG SPGA Sphacelariales Sphaeractinoidea Sphaeriales Sphaeriidae Sphaerioidaceae sphaeristerium sphaerite Sphaeritidae Sphaerium Sphaerocarpales Sphaeroceridae Sphaerodoridae Sphaerolaimidae			Sperry, Willard Learoyd Sperry/Univac Unix for Unisys 1100/2200 Hardware/Software sperrylite sperrylite SPERS Sperse SPERT Spes Spes Spes Spes Spes Spes est vigilantis somnium Spes impunitatis continuum affectum tribuit delinquendi Spes phthisica Spes phthisica Spes phthisica Spes recuperandi SPESA SPESB SPESD Spese di chiusura Spesen Speshnev, Nikolai Speshnev, Nikolai Aleksandrovich Spesialis Anak SPESM SPESO SPESP Spessa Spessartine Spessartine garnet spessartines spessartite spessartite Spessartite garnet SPEST Spesutie Island Boating Activity SPET SPET SPETA SPETC Spetches SPETE Spetember Spetember SPETEREL SPETERL SPETRL Spetsial'nye Otryady Bystrogo Reagirovaniya Spetsializiran Otriad za Borba s Terorizma Spetsialla'noye Naznayacheniye Spetsnaz SPETT SPETT.LE Spettabile

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