Rimkorolgite

rimkorolgite

bobierrite

strontiowhitlockite

collinsite

Images

Formula: BaMg5(PO4)4.8H2O
Hydrated phosphate, barium-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 2.67 measured, 2.62 calculated
Hardness: 3
Streak: White
Colour: Yellow-brown, light pink, flesh-red to reddish brown
Luminescence: Not fluorescent under UV
Environments

Carbonatites

Images

Although rimkorolgite was approved in 1990, to date (December 2022) it has been reported only from the Kovdor massif (two localities).

Localities

At the type locality, the Kovdor Zheleznyi mine, Kovdor Massif, Murmansk Oblast, Russia, rimkorolgite occurs in centimetre-sized cavities in dolomitic carbonatites that cut jacupirangite and forsterite-magnetite iron ores containing collinsite, bobierrite, carbonate-rich fluorapatite and strontiowhitlockite (AM 81.517-518).

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