Hydrated phosphate containing hydroxyl; It also contains manganese and beryllium
Specific gravity: 2.90 to 2.97
Colour: Brown, red, orange, greenish gray; yellowish green to brown in transmitted light; May exhibit abnormal interference colours (Mindat).
Solubility: Soluble in acids
Plutonic igneous environments
Roscherite occurs in cavities in granite or in
granitic pegmatites (Mindat, HOM), associated with
muscovite and quartz
At the Sapucaia pegmatite mine, Brazil, roscherite occurs in vugs in muscovite, associated with faheyite, variscite, frondelite, beryl, muscovite and quartz (AM 43.824-838, HOM).
At the type locality, the Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirgskreis, Saxony, Germany, roscherite occurs in drusy cavities in granite associated with ježekite, lacroixite, childrenite, apatite, morinite, eosphorite, apatite and tourmaline (Dana, Mindat, HOM).
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