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  4. Pottery Stone

Ceramic Raw Materials

Pottery Stone

This is the stone calcinated with a single material and made into porcelain.
We own a mine in Amakusa City, Kumamoto Prefecture, in addition to other sources of supply.

Pottery Stone

  • Usage examples
    Tableware, tiles, sanitary wares, glass raw materials
  • Main analytical factors
Amakusa 3rd level Amakusa De-iron, low-fired Amakusa De-iron, high-fired
SiO2(wt%) 77.6 77.3 78.0
Al2O3(wt%) 15.1 15.4 15.2
Fe2O3(wt%) 0.71 0.33 0.36
Na2O(wt%) 0.08 0.86 0.13
K2O(wt%) 3.04 3.03 2.54
Ig.loss(wt%) 2.90 2.60 3.26
Fireproofing level SK26 SK19 SK26

Sales Group, Sales Department

  • Phone : +81-52-661-3182
  • FAX : +81-52-652-3346

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