psilomelane


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Words related to psilomelane

a mineral consisting of hydrated basic oxide of manganese and barium

References in periodicals archive ?
Balaghat Hollandite, Braunite, Psilomelane, Hematite, Quartz and Apatite.
2) at Jordan Mountain contains manganite intergrown with pyrolusite, and reduced amounts of hausmannite and psilomelane (Rose and Johnson 1990; Merlini 1998).
In the upper levels of the mine psilomelane in a fine, black botryoidal habit was abundant.
What may appear to be a perfectly solid agate on the outside turns out to be solid psilomelane or other manganese oxides on the inside.
Tabular barite crystals are associated with a recent hot spring deposit of tungsten-bearing psilomelane and opal at Uncia.