Accession Number : AD0744147
Title : Variation in the Coefficient of Linear Expansion as a Function of Heating Temperature for Vein Quartz from Tin Ore Deposits,
Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Personal Author(s) : Uspenskaya,A. B.
Report Date : 15 MAR 1972
Pagination or Media Count : 10
Abstract : The study of various physical (mechanical and electrical) properties of vein-quartz from pegmatitic and hydrothermal deposits, containing nonferrous and rare metals, has been undertaken in order to explain differences in the conditions of its formation. In particular, it is supposed that the temperatures and pressures, under which quartz of different genesis was crystallized, differ greatly. The basic goal of the investigation was to detect and evaluate subtle differences in the structure and physical properties of quartz of different genesis and, likewise, to explain the differences in grain-orientation for granular aggregates of these quartz varieties.
Descriptors : (*QUARTZ, THERMAL EXPANSION), ROCK FORMING MINERALS, ORES(METAL SOURCES), TEST METHODS, TIN, USSR
Subject Categories : Geology, Geochemistry and Mineralogy
Distribution Statement : APPROVED FOR PUBLIC RELEASE