Minerals and Metals in Ancient India v2.c47.86
Minerals and Metals in Ancient India v2.c47.86
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v2.c47.86
*Kaolin* : China-clay. Name from the Chinese hill Kauling. Phyllosilicate. Al₄Si₄O₁₀(OH)₈. Dull earthy-white. Soft. Hardness 2-2.5. Product of decomposition of feldspar, granite etc. May be associated with quartz, iron oxide etc. Pure variety for pottery, porcelain or Chinaware etc.