Mineral Resources Potential - Geothermal Resources

Itldwtrial Minds 143
Specific varieties of mica include; biotite, muscovite, lepidolite~@~~
phlogopite, illite. Muscovite, also known as potash mica, is a
phyllosilicate minemi of aluminium and potassium with formula
KAl2(A1Si3Ol o)(F,0H)2. Muscovite is the most common mica,
found in granites, pegmatite, gneisses and schists, and as a contact
metamorphic rock or as a secondary minerd resulting from the
alteration of topaz, feldspar, kyanite, etc. Biotite is a common
phyllosilicate minerd whose chemical formula is
K(Mg,Fe++)3AlSi301 O(F,0H)2 and has a molecular weight of
+. .
43 3,53g/mol. kpidolite (KLi2A1(A1, Si)30 lo(F,0H)2) is a lilac or
rose-violet colored phyllosilicate rriinerd of the mica group that is
a secondary source of lithium. It is associated with other lithiumbearing
minerals like spodumene in pegmatite bodies, It is one of
the major sources of the rare dkdi metals, rubidium and cesium.
I
I Puogopite is a yellow, greenish or reddish brown member of the
mica family of phyllosilicates. It is also known as magnesium