phosphor-roesslerite Min.
(fɒsfəˈr{obar}sləraɪt)
Also phosphorrösslerite.
[ad. G. phosphorrösslerit (Friedrich & Robitsch 1939, in Zentralbl. für Min., Geol., und Paläont. A. 143), f. phosphor phosphorus: see roesslerite.]
A hydrated acid phosphate of magnesium, MgH(PO4).7H2O, that is isomorphous with rösslerite and occurs as monoclinic crystals that are usually discoloured by impurities and that lose water on exposure to air.
| 1939 Mineral. Abstr. VII. 316 Mud in old workings in the gold mines at Schellgaden (in Salzburg) shows glistening crystals of the new mineral phosphor⁓rösslerite... The water-clear crystals, usually yellow from iron staining, are monoclinic. 1951 C. Palache et al. Dana's Syst. Min. (ed. 7) II. 713 Phosphorroesslerite. |