| Other author/creator | Lancaster, Forrest W., author. |
| Other author/creator | United States. Department of the Interior. |
| Other author/creator | North Carolina. Geology and Mineral Resources Section. |
| Other author/creator | Geological Survey (U.S.) |
| Other author/creator | Tennessee Valley Authority. |
| Series |
Geological Survey professional paper 225
Geological Survey professional paper 225. ^A16492
|
| Contents |
Abstract -- Introduction -- General statement -- Field and laboratory work -- Acknowledgments -- Commerical sheet muscovite -- General properties -- Properties affecting value -- Cleavage -- Hardness, flexibility, and elasticity -- Structural imperfection -- Color -- Staining, intergrowths, and inclusions -- Primary impurities -- Secondary impurities -- Electrical properties -- Uses -- Grading and classification -- Visual methods -- Electrical methods -- Combination method of the American Society for Testing Materials -- Preparation and marketing -- Sheet muscovite in the Southeastern States -- Distribution of deposits -- History and production -- Occurrence -- General geologic features -- Pegmatites -- Mica deposits -- Tests of sheet muscovite from the Southeastern States -- General statement -- Color tests -- Methods of testing -- Results -- Petrographic examination -- Staining and inclusions -- Pinholes and hair cracks -- Electrical tests -- Apparatus and methods of testing -- General tests -- Tests of visually qualified mica -- Summary and conclusions -- List of references -- Index. |
| Local note | Joyner- FOR JOYNER LIBRARY HOLDINGS OF THE SERIES, GEOLOGICAL SURVEY PROFESSIONAL PAPER, SEARCH BY CALL NUMBER QE75 .P9. |
| General note | Prepared under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority. |
| Bibliography note | Includes bibliographical references (pages 106-107) and index. |
| Other forms | Also issued online. |
| Issued in other form | Online version: Jahns, Richard H. (Richard Henry), 1915-1983. Physical characteristics of commercial sheet muscovite in the southeastern United States. Washington, U.S. Govt. Print. Off., 1950 |
| LCCN | gs 50000086 |
| Govt. docs number |
I 19.16:225 |
