Hydrated normal phosphate, the most common member of the rhabdophane group
Specific gravity: 3.77 to 4.01
Streak: Colourless when pure
Colour: Brown, pale pink, yellowish white, pale grey, fibres may be colourless in transmitted light
Solubility: Readily soluble in hydrochloric acid
Common impurities: La,Nd and other rare earth elements
Rhabdophane-(Ce) is an uncommon late-stage mineral in almost all of its occurrences, namely
pegmatites, polymetallic veins and also rarely in
it has been found in limonite beds
At the Clara Mine, Oberwolfach, Wolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany, rhabdophane-(Ce) occurs as white to pale brown crystals in druses on baryte, fluorite, chalcopyrite and tetrahedrite (AM 65.1065, Dana).
At Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar District, Khyber Pakhtunkhwa Province, Pakistan, rhabdophane-(Ce) has been found as a yellowish tan coating on a 3 cm cluster of bastnäsite crystals. It appears to be a replacement of the bastnäsite rather than an encrustation or overgrowth (Minrec 35.3.218).
At the type locality, Fowey Consols, Tywardreath and Par, Cornwall, England, UK, rhabdophane-(Ce) occurs in a vein copper ore deposit associated with sphalerite (Mindat, HOM).
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