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. 1968 American Industrial Hygiene Association Journal 353 The aluminum and silicas were in all prob ability associated either with the talc mole cule, or additives such as kaolin, or the base material from which the talc was derived. 22 ru .

Bulletin of the Subalpine Mining Association - Year III No. 3-4 September December 1966 GEOLOGY AND GENESIS OF THE TALC DEPOSITS IN THE PINEROLESE ( ) 1 - Purpose o f the note Luigi Peretti The talc extracted from the mines of the Cottian Piedmontaine Alps (the so-called "Pinerolese" [Pinerolo] region)--more precisely: the "white talc" variety that constitutes a good part of the production--presents specific natural characteristics that confer on the commercial product the known and particularly appreciated application requirements.

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GommitteeoftheProgressive Hairi/e Industry Room 510-11, 60 East 42n d St beet New York, New York 10017 M em bers Combe Chemica l , In c .

Th e Pe n n s y l v a n ia St a t e Un iv e r s it y 226 CHEMICAL ENGINEERING II UNIVERSITY PARK, PENNSYLVANIA 16802 C e n t e r for A ir E n v ir o n m e n t '.Stu d ies .

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