Quartz crystal.

Bibliographic Details
New Title:	Industrial sand and gravel Tripoli and special silica stone Silica (Online)
Corporate Authors:	United States. Bureau of Mines, Geological Survey (U.S.)
Format:	Government Document Serial
Language:	English
Published:	[Washington, D.C.] : [U.S. Dept. of the Interior, Bureau of Mines]
Subjects:	Quartz crystals > Statistics > Periodicals.
Online Access:	scroll down to heading: Quartz Crystal to access issue(s)

Available Online