Prime Natural Resources
Mica Fabricators & Exporters
     Menu

Company Introduction


About Us
Message from our CEO
PNR Morals
Management Team



Products


Mica Scrap
Mica Flakes
Mica Powder
Processed Mica
Fabricated Mica
Micanite


Mica Process Flowchart


R & D


Testing and Product Development
Quality Control

Mining
Physical & Chemical Properties of Mica


Muscovite
Phlogophite
Biotite Mica
Packaging


Mica Flakes and Powder
Processed Mica & Fabricated Mica

Mode of Shipment


International Shipment
Domestic Shipment

Sister Companies


M/s Mehra Minerals



Consumption of Mica by Country


Application of Mica


Clientele


Contact Us



Chemical & Physical Properties of Biotite Mica


Chemical Properties
Chemical Formaula : K(Mg3,Fe)3(AlSi3O10)(OH,F)2
Composition : Molecular Weight = 433.53 gm

Element Element %Symbol Compound % Compound
Potassium 09.02 %K 10.86 % K2O
Magnesium14.02 %Mg 23.24 % Mg2O
Aluminium06.22 %Al 11.76 % Al2O3
Iron06.44 %Fe 8.29 % FeO
Silicon19.44 %Si 41.58 % SiO2
Hydrogen00.41 %H 03.64 % H2O
Oxygen43.36 %O--
Fluorine1.10 %F 1.10 % F
--F -0.46 % -O=F2

Empirical Formaula : KMg2.5Fe+20.5AlSi3O10(OH)1.75F0.25
Environment : Granitic rocks. Forms a series with phlogopite. Has several polytypes (1M, 3T, 2M1). Biotite
is now a group name for phlogopite, siderophyllite and eastonite.
IMA Status : Not Approved IMA 1998 - Bitote is now the group name
Physical Properties
Cleavage : {001} Perfect
Color : Dark brown, Greenish brown, Blackish brown, Yellow, White.
Density : 2.8 - 3.4, Average = 3.09
Diaphaneity : Transparent to translucent to opaque
Fracture : Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Hardness : 2.5-3 - Finger Nail-Calcite
Luminescence : Non-fluorescent
Luster : Vitreous - Pearly
Streak : Gray
Electron Density : Bulk Density (Electron Density)=3.07 gm/cc
note: Specific Gravity of Biotite =3.10 gm/cc.
Photoelectric : PEBiotite = 4.04 barns/electron
U=PEBiotite x relectron= 12.42 barns/cc.

Address : Prime Natural Resources, Bishrambagh Road, P.O. : Jhumri Telaiya, Dist : Koderma, State : Jharkhand, India - 825409 Phone No. : 00-91-9931508894. Email id : mica@pnrmica.in