porcelaneous chert

porcelaneous chert

[¦pȯr·sə¦lā·nē·əs ′chərt]
(petrology)
A hard, opaque to subtranslucent smooth chert, having a smooth fracture surface and a typically china-white appearance resembling chinaware or glazed porcelain.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.