Braunite is a grey/black mineral, an oxide of manganese, named after Mr. Braun of Gotha. An oxide is a chemical compound of oxygen with other chemical elements. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7 , 4, d Density, Hardness 7470 kg/m3, 6. ... Gotha is a Kreis (district) in the middle of Thuringia, Germany. ...
Braunite has the chemical formula: A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ...
Brandtite occurs as white to colourless massive shists, as crystals of 2 cm in length and 1 - 3 mm thick, combined to sub parallel to radial aggregates embedded in gaps of braunite together with grischunite, sarkinite, geigerite, tilasite and manganese-berzeliite or as a lawn of white crystals of some mm size.
Braunite is the manganese ore exploited at Falotta.
Sarkinite is associated with brandtite, grischunite, tilasite, kutnahorite, manganoan-berzeliite and manganoan calcite.
The method of claim 1 wherein said mineral is selected from the group consisting of fluorspar, spodumene, pyrolusite, braunite, quartz, apatite, bobierrite, evansite, zirconium silicate, feldspars, leucite and anauxite.
Accordingly, the present process is applicable to minerals such as fluorspar (fluorite), spodumene, pyrolusite, braunite, quartz, apatite, bobierrite, evansite, zirconium silicate, feldspars, leucite and anauxite.
Braunite is also a manganese mineral having the formula Mn.sub.2 O.sub.3 that is brownish fl or steel-gray in color.
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