Shopping Cart -

Your cart is currently empty.
Continue Shopping
This website use cookies and similar technologies to improve the site and to provide customised content and advertising. By using this site, you agree to this use. To learn more, including how to change your cookie settings, please view our Cookie Policy
Pocketmags Digital Magazines
Pocketmags Digital Magazines
   You are currently viewing the European Union version of the site.
Would you like to switch to your local site?
Digital Subscriptions > Rock&Gem Magazine > April 2019 > Garnet: An Industrial Commodity

Garnet: An Industrial Commodity

Garnet mining is booming and not because of demand for gemstones or mineral specimens. Garnet has become a bona fide industrial commodity because it is a nearly perfect industrial abrasive. In just the past 15 years, annual world mine production has quadrupled to 1.2 million metric tons of refined garnet concentrate worth $340 million dollars.

The word “garnet” refers to a group of complex silicate minerals with similar crystalline structures but diverse chemical compositions. Garnet’s general chemical formula is A3B2(SiO4)3, with “A” representing such divalent metallic ions as calcium, magnesium, ferrous iron, and manganese, and “B” representing trivalent ions like aluminum, chromium, ferric iron, and manganese. In certain rare garnets, the “B” cation can also include vanadium, titanium, ort zirconium ions.

Purchase options below
Find the complete article and many more in this issue of Rock&Gem Magazine - April 2019
If you own the issue, Login to read the full article now.
Single Issue - April 2019
Or 699 points
Annual Digital Subscription
Only € 2.58 per issue
plus 3 Free Back Issues
Was €30.99
Now €30.99
6 Month Digital Subscription
Only € 3.00 per issue
Or 1799 points
Monthly Digital Subscription
Only € 5.49 per issue
Or 549 points

View Issues

About Rock&Gem Magazine

Rock & Gem April 2019, WorkShops in the Wild : Lifelong Learning at Wildacres, Emergence of Flourescence, Bladed Barite : In the East Potrillo Mountains, And More....