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ATHENA

MINERALOGY

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Mineral: THOROGUMMITE = THORITE variety
Formula: Th(SiO4)1-x(OH)4x
Crystal System: Quadradic (Tetragonal)
Group: Zircon group
References: AM 38 (1953), 1007; HB2/2 (1995); CM 52 (2014), 769
Type Locality: Bluffton, Llano Co., Texas, USA
Comments: A Thorite variety. Discredited

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