psilomelane मीनिंग इन हिंदी

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Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium.
As an ore of manganese it is much less abundant than pyrolusite or psilomelane.
"' Psilomelane "'is a group name for hard black manganese oxides including hollandite and romanechite.
High quality samples have been found in South Africa and Namibia where it is associated with other manganese oxides, pyrolusite and psilomelane and the iron-manganese mineral bixbyite.
Psilomelane is erroneously, and uncommonly, known as "'black hematite "', despite not being related to true hematite, which is an iron oxide.
In 1942 the name " cryptomelane " was proposed as part of an effort to sort out the manganese oxide minerals referred to as " psilomelane ".
It occurs in mixtures with " psilomelane " ( recently renamed to romanechite ) and with other manganese oxides in an iron oxide deposit, most likely bacterially altered from a previous mineral in the Akhtensk deposit.
The Greek for hidden and black, in reference to the confusion and difficulty in recognition of the various black manganese oxide minerals referred to as " psilomelane ", the collective term for hard manganese oxides.
We have a page on it-see Psilomelane also check the links or do an image search for'psilomelan'as it can take different forms which don't all look exactly the same . 83.100.249.228 20 : 37, 1 September 2007 ( UTC)

संज्ञा.

a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese