schorlomite

(ˈskɔːləˌmaɪt)

(Minerals) a mineral that is black in colour and belongs to the garnet group

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References in periodicals archive ?

Not only are the interiors higher in iron, they also contain up to 4.5 weight % titanium, making a distinct schorlomite, [Ca.sub.3][Ti.sup.4+.sub.2]([Fe.sup.3+.sub.2]Si)[O.sub.12], component.

Red Grossular from the Sierra de Cruces, Coahuila, Mexico

The other item, entirely different, is nepheline in very sharp, opaque, gray-white prismatic crystals to 2 cm long, with flat basal terminations, all jumbled together in jackstraw groups with dull-lustered, subhedral black schorlomite. The species-identity has been confirmed, Ernesto vouches, by several workers in Europe, and the sharpness of crystallization is exceptional for nepheline.