Skip to main content

Get full access to Wills' Mineral Processing Technology, 8th Edition and 60K+ other titles, with a free 10-day trial of O'Reilly.

There are also live events, courses curated by job role, and more.

Start your free trial

Appendix II

Common Nonmetallic Ores

Material	Main Applications	Main Ore Minerals	Formula	Specific Gravity	Occurrence
ANHYDRITE	Increasing importance as a fertilizer, and in manufacture of plasters, cements, sulfates, and sulfuric acid	ANHYDRITE	CaSO₄	2.95	An important gangue mineral in porphyry Cu–Mo deposits. Occurs with gypsum and halite as a saline residue. Occurs also in “cap rock” above salt domes, and as minor gangue mineral in hydrothermal metallic ore veins
APATITE	See Phosphates
ASBESTOS	Heat-resistant materials, such as fire-proof fabrics and brake-linings. Also asbestos cement products, sheets for roofing and cladding, fire-proof paints, etc.				Group of six minerals with same habit, roughly 1:20 aspect ratio, thin fibrous crystals
		CHRYSOTILE (Serpentized ...

Get Wills' Mineral Processing Technology, 8th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial

Don’t leave empty-handed

Get Mark Richards’s Software Architecture Patterns ebook to better understand how to design components—and how they should interact.

It’s yours, free.

Get it now

Cover of Software Architecture Patterns

Check it out now on O’Reilly

Dive in for free with a 10-day trial of the O’Reilly learning platform—then explore all the other resources our members count on to build skills and solve problems every day.

Start your free trial Become a member now