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Scorzalite

 Formula: ((Fe2+,Mg)Al2(OH,PO4)2)                   Hardness: 5 - 6

Scorzalite is a dark blue phosphate mineral containing iron, magnesium, and aluminium phosphate. Scorzalite forms one endmember of a solid solution series with the lighter, more magnesium-rich lazulite.

Scorzalite crystallizes in the monoclinic system in a dipyramidal form. It has a specific gravity of 3.4. It is infusible and insoluble in water and only slightly soluble in warm hydrochloric acid.

It was first described in 1947 for an occurrence in the granite pegmatite in the Córrego Frio mine, Linópolis, Doce valley, Minas Gerais, Brazil. It was named for the Brazilian geologist Everisto Pena Scorza (1899–1969).

It occurs as a secondary phase in pegmatites and kyanite (aluminium-rich) quartzites. Associated minerals include souzalite, triphylite, wyllieite, trolleite, apatite, lacroixite, berlinite, tourmaline, muscovite, feldspar and quartz.

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