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Formula: MgZn2(PO4)2.4H2O
Hydrated phosphate, paramorph of
sergeysmirnovite
Crystal System: Triclinic
Specific gravity: 3.09 calculated
Streak: White
Colour: Colourless
Environments
Sedimentary environments
Hydrothermal environments
Reaphookhillite is a new mineral, approved in 2019 and to date (September 2022) reported only from the type
locality
Localities
At the type locality, Reaphook Hill, Martins Well station, South Flinders Ranges, Flinders Ranges, South Australia,
reaphookhillite occurs as colourless, bladed to thin tabular crystals to 0.6 mm across. It is found as
overgrowths on parahopeite crystals and is associated with
scholzite, leucophosphite
and chalcophanite
(MM 86.4.525-530).
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