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DEFINITION FOR TALC.

By:
Edited by:
Levadie Benjamin

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Abstract

Talc is a naturally occurring single-phase mineral having the approximate chemical formula Mg//3Si//4O//1//0(OH)//2 and a specific type of crystal structure. Talc commonly forms by hydrothermal alteration of rocks rich in magnesium and iron (ultramafic rocks) and by low-grade thermal metamorphism of siliceous dolomites. The fact that talc often occurs in association with other minerals, or that its crystalline form may be platy, fibrous, acicular, or massive, does not modify its definition. The paper discusses variations in talc chemical composition and its crystal structure and describes its characteristic physical properties.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
DEFINITION FOR TALC.
ISBN:
0803102097
Year Published:
1984
Language:
English
Publisher:
ASTM
Publisher location:
Philadelphia, PA, USA
Larger Work Title:
ASTM Special Technical Publication
First page:
193
Last page:
197
Conference Title:
Definitions for Asbestos and Other Health-Related Silicates.
Conference Location:
Philadelphia, PA, USA