| 释义 |
polianite Min.|ˈpəʊlɪənaɪt|
[ad. G. polianit (A. Breithaupt 1844, in Ann. der Physik LXI. 191), f. Gr. πολιά greyness (in allusion to its colour): see -ite1.]
A variety of pyrolusite that occurs as large well-formed crystals.
1849J. Nicol Man. Mineral. 420 Polianite..acts like pure hyperoxide of manganese. 1937Mineral. Mag. XXIV. 521 (heading) X-ray studies on pyrolusite (including polianite) and psilomelane. Ibid., The present study had for its main objective an attempt to settle..the uncertainty existing as to the relationship between polianite and pyrolusite. 1969Mineral. Abstr. XX. 289/1 The Mn oxides..have a microrhythmic structure..; in the veins they include polianite. |