mineral rubber

mineral rubber

[′min·rəl ′rəb·ər]
(materials)
Asphaltine minerals (such as gilsonite and grahamite) and blown asphalts; used in compounding of rubber, coatings, and paints.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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