Mica

Products
(Mica) 

A group of minerals having perfect basal cleavage and capable of splitting into thin laminae is called mica. Chemically they contain complex silicate of aluminium and alkalies with hydroxyl.

Taking the advantage of large reserve and mining capacity of muscovite mica mine, Chenxing company has been producing mica products since early 1960, our products have been sold to USA, South Korea, Japan, Europe and are widely applied in the fields:

  • Automotive
  • Paints and coating
  • Plastics
  • Plasterboard and joint compounds
  • Pearlescent pigment
  • Rubber
  • Drilling
  • Brake pad & clutches

Dry Ground Muscovite Mica

Quick View
Muscovite Mica
Specific Gravity   2.6
Refractive Index   1.58
MOH hardness   2.5
pH value   6.5-7.5
Commodity Definition Size
Raw materials Mica scrap 8-20mesh
Dry Building 20mesh
40mesh
60mesh
80mesh
Mica materials 100mesh
16-30 mesh
Powder 40-100 mesh
Series Plastic 60mesh
100mesh
200mesh
Grade 325mesh
400mesh
600mesh

Dry Ground Muscovite Mica (Typical Grade Datasheet)

Size
Properties
20 mesh 60mesh 100mesh
Mesh and percentage mesh % mesh % mesh %
Particle distribution +20 <5 +60 / +100 /
-20 / +40 70±5 -60 /+100 55±5 -100 /+200 35±5
-40 / +60 25±5 -100 / +200 40±5 -200 / +325 25±5
-60 / +100 <10 -200 / +325 <5 -325 <45
-100 <5 +325 / / /
Moisture content ≤0.5% ≤0.5% ≤0.5%
Impurity ≤1.0% ≤1.0% ≤1.0%
Color Silver white
Chemical Analysis
Chemicals SiO2 Al2O3 Fe2O3 K2O Na2O MgO CaO L.O.I
Content 44.30% 31.21% 5.74% 10.58% 1.17% 0.62% 0.57% 4.97%
Other parameters:
Ratio of diameter to thickness Loose density Whiteness Refractiveindex Density pH value
1:30 <0.30g/cm3 70 1.58 2.8 g/cm3 6.5-7.5

Scrap mica is ground by three processes, namely dry grinding, wet grinding and micronising. The marketed product is classified according to the grinding process which indicates quality and properties like colour, mesh size and bulk density. Dry mica powder is prepared by grinding in high speed hammer mills. The edges of the flakes get crushed and powdered mica is produced which gives the appearance of flour. Wet-ground mica is produced by grinding in water involving preferential delamination of flakes. Churn mills, with large wheels or rollers rotating on horizontal shafts are used for this purpose.

Wet Ground Muscovite Mica

Commodity Definition Size
Wet High 100mesh
200mesh
Ground Class 325mesh
400mesh
600mesh
Mica Cosmetic grade 1250mesh
2000mesh
Series Pearl luster Coarsely superfine
Finely superfine

Wet Ground Muscovite Mica (Typical Grade Datasheet)

size 100 mesh 200 mesh 325 mesh 400 mesh 500 mesh 600 mesh 800 mesh 1000 mesh
Residue % ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤10.0 ≤10.0 ≤10.0
Fe content ppm ≤800 ≤800 ≤400 ≤400 ≤300 ≤300 ≤300 ≤300
Impurity % ≤1.0 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5
Loose density g/cm3 ≤0.3 ≤0.25 ≤0.25 ≤0.22 ≤0.22 ≤0.22 ≤0.22 ≤0.22
Moisture:% ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤1.0
Whiteness° >75 >75 >75 >80 >80 >80 >80 >80
Ratio of diameter to thickness >60 >60 >60 >60 >60 >60 >60 >60

Phlogopite Mica

uick View
Phlogopite   Mica
Specific Gravity   2.6
Refractive Index   1.58-1.64
MOH hardness   2.5-3
pH value   6.5-7.5
Definition Commodity Size
  Phlogopite mica 8-16mesh
Phlogopite Phlogopite 16-20mesh
20-40mesh
series Mica powder 40-80mesh
80-100mesh
200-325mesh
3d时时彩票机