Stolzite Value, Price, and Jewelry Information
Stolzite is a rare mineral; much rarer than wulfenite and usually occurs in very minute crystals. However, the Australian crystals may be up to 1 inch...
By Joel E. Arem, Ph.D., FGA, updated on
Optics: 0 I 2.27; e : 2.19.
Uniaxial (—).
Occurrence: A secondary mineral in the oxidation zone of tungsten-bearing ore deposits.
Broken Hill, New South Wales, Australia.
Brazil; England; Sardinia: Germany; Nigeria.
Utah; Arizona; Massachusetts; Pennsvlvania.
Name: After Dr. Stolz of Bohemia who first called attention to the mineral.
Related Articles
Black Diamond Value, Price, and Jewelry Information
Black is a color that can say a lot. Wearing black diamond jewelry communicates a sense of unique strength and...
Read More
Chameleon Diamond Value, Price, and Jewelry Information
Professionals will tell you never to trust a trade name used to describe the appearance of a fancy colored diamond....
Read More
Gray Diamond Value, Price, and Jewelry Information
Diamonds with a pure gray hue are a rare treasure indeed. More often, gray is mixed with blue or violet...
Read More
Green Diamond Value, Price, and Jewelry Information
Green diamonds are the oddballs of the fancy colored diamond varieties. Their rare color is usually the result of damage...
Read More
Latest Articles
800 Years of Mogok: A Celebration in Tenuous Times
As Mogok, Myanmar prepares to celebrate its 800th anniversary, the inhabitants of this prolific gem producing region face an uncertain...
Read More
What is the Average Gemstone Faceting Yield?
What’s the average gemstone faceting yield from a single piece of rough? Learn how to estimate how much material you’ll...
Read More
Pyroxmangite Value, Price, and Jewelry Information
Pyroxmangite grains are rare, seldom clean enough to facet, and difficult to cut. However, when cut, they are extremely beautiful...
Read More
How to Identify Emerald Simulants and Synthetics
Gemologists can separate natural emeralds from emerald simulants and synthetics. Learn about the most common tools and techniques for this....
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
