1
|
Barytes
|
2
|
Bentonite
|
3
|
Calcite
|
4
|
Corundum and Sapphire
|
5
|
Diaspore
|
6
|
Dolomite
|
7
|
Dunite & Pyroxinite
|
8
|
Felspar
|
9
|
Fireclay
|
10
|
Fuller’s Earth
|
11
|
Granite
|
12
|
Gypsum and Selenite
|
13
|
Kaolin, Ball Clay, Other Clays and Shale
|
14
|
Laterite
|
15
|
Marble
|
16
|
Mica
|
17
|
Ochre
|
18
|
Other Calcareous Materials
|
19
|
Pyrophyllite
|
20
|
Quartz & Other Silica Minerals
|
21
|
Slate, Sandstone & Other Dimension Stones
|
22
|
Talc, Soapstone and Steatite
|
