dundasite

dundasite

[′dən·də‚sīt]
(mineralogy)
PbAl2(CO3)2(OH)4·2H2O A white mineral consisting of a basic lead aluminum carbonate, occurring in spherical aggregates.
References in periodicals archive ?
It was first mentioned as a "new barium analog of dundasite" by Sabina et al.
The molar proportions of C[O.sub.2], [H.sub.2]O and OH in the theoretical formula are based on the similarity of its X-ray diffraction powder pattern to dundasite, with which it is considered to be isostructural (Roberts, 1978).
Crystallography: Orthorhombic, space group not determined but assumed to be Pbnm by analogy with dundasite, a 9.079, b 16.321, c 5.786 A, V 857 [A.sup.3], Z 4, a:b:c = 0.5563:1:0.3545.
(2000) Petterdite, the Cr-dominant analogue of dundasite, a new mineral species from Dundas, Tasmania, Australia and Callenberg, Saxony, Germany.