Shopping Cart -

Your cart is currently empty.
Upgrade to today
for only an extra Cxx.xx

You get:

plus This issue of xxxxxxxxxxx.
plus Instant access to the latest issue of 390+ of our top selling titles.
plus Unlimited access to 32000+ back issues
plus No contract or commitment. If you decide that PocketmagsPlus is not for you, you can cancel your monthly subscription online at any time. Auto-renews at $9.99 per month, unless cancelled.
Upgrade for 99c
Then just $9.99 / month. Cancel anytime.
Learn more
Pocketmags Digital Magazines
US
Pocketmags Digital Magazines
Read anywhere Read anywhere
Ways to pay Pocketmags Payment Types
Trusted site
At Pocketmags you get
Secure Billing
Great Offers
Web & App Reader
Gifting Options
Loyalty Points
20 MIN READ TIME

Zircon, Zirconium and Zirconia

Zircon, or zirconium silicate, is the most abundant zirconiumbearing mineral. This specimen of a wine-colored crystal of zircon perched atop a contrasting matrix hails from the Haramosh Mountains of Pakistan. (The Arkenstone, irocks.com)

Despite similar-sounding names, zircon, zirconium, and cubic zirconia refer respectively to a mineral, an element, and a synthetic material. Zircon is the mineral zirconium silicate (ZrSiO4), which contains the elements zirconium, silicon, and oxygen. It crystallizes in the tetragonal system and has a very substantial Mohs hardness of 7.5. With its durability, high index of refraction, and range of pleasing colors, zircon is an attractive gemstone; the colorless variety was once a popular–and sometimes fraudulent– substitute for diamond.

READ MORE
Purchase options below
Find the complete article and many more in this issue of Rock&Gem Magazine - March 2019
If you own the issue, Login to read the full article now.
Single Digital Issue
March 2019
$5.99
This issue and other back issues are not included in a new Rock&Gem Magazine subscription. Subscriptions include the latest regular issue and new issues released during your subscription.
Annual Digital Subscription
Only $ 2.33 per issue
SAVE
53%
$27.99
6 Month Digital Subscription
Only $ 2.66 per issue
SAVE
47%
$15.99
Monthly Digital Subscription
Only $ 4.99 per issue
$4.99

View Issues

About Rock&Gem Magazine

Rock & Gem March 2019, Special Section : Tools of the Trade, Answers to Agate Questions, Prehistoric Texas : Home to Mammoths & Dinosaurs, And More.....