Gemstones, Diamonds, Pearls -
My Shopping Cart My Account Gem Library
|Welcome to|Single Stones|Calibrated Stones|Pairs|Mix Lots|Closeouts|Carved Gems|lapidary and gemological tools and supplies|Gem Smart Search|
 Home / Gem Library / Natural Gemstones / Diaspore May 27, 2020  

Natural Diaspore
E-mail this article to a friend

There are 4 Diaspore(s) available at

Diaspore has been available since the early 1800’s and is mentioned in George Kunz’s book “The Curious Lore of Precious Stone” where the stone is linked to the Christian name Dorothy.

Known Facts
Color Key: gray, khaki green, pink, light purple
Refractive Index: 1.70 – 1.75
Chemical Composition: AlO(OH)
Hardness: 6.5 - 7.0
Density: 3.30 – 3.39
Crystal Group: Orthorhombic

Along with, alexandrite, color change garnet, and color change sapphire, diaspore is one of the few gemstones that may change color as a function of the lighting conditions. The gem is currently mined at only one location in the world, Anatolia, Turkey and supply is said to be very limited.

Although the color change is normally not very strong, Diaspore can shift from a kiwi green or gray in daylight to a rhodolite purplish-pink under incandescent light. but normally the color. Mostly recently the trade name “Zultanite” has been adopted for this stone.

Diaspore (Zultanite) is believed to help improve ambition, intellect and is said to help one develop psychic powers.

Check our Top, Largest, Smallest or Latest Diaspore's.

Diaspore Stats/
Popularity Index: 280hits
Total Items: 4items
Total Weight: CTS 17.52
Cheapest: USD 78.50
Most Expensive: USD 503.40
Largest: CTS 8.39
Smallest: CTS 1.57
Last Added: 05/27/20 09:42:20

Knowledge Search/
Enter Keywords:
Enter one or more keywords (i.e madagascar sapphires ).

About Gemstones /

Gem Library/
Gems Legend and  Lore Gems Legend and Lore
Some of the latest of ways that gems have been associated with Birthstones and Signs of the Zodiac.
Understanding Gemstones Understanding Gemstones
Learn about Physical and Optical properties, color, clarity and cut of gemstones.
Gems Glossary Gems Glossary
Ever wonder what are "Blemish", "Luster", "Saturation" "Uniformity" or "Mine Run" means?
Reference and  Links Reference and Links
Recommended books and links to Gem, Jewelry&Mineral Magazines, Gem Institutes and Labs.

Book’s Corner/
Buy at Ruby & Sapphire by Richard W. Hughes
Price: USD 98.00
"This book is surely the best study ever done on the exotic subject of rubies and sapphires..."
see more recommendations

 Top of Page Need help?  

Gemstones for sale: Alexandrite, Garnet, Diamond, Opal, Spinel, Sapphire, Tourmaline, Tanzanite, Tsavorite,
Gemstones by Category: Calibrated, Carving, Closeout, Mixed Lot, Pair, Rough, Single, Best Sellers or Featured Gemstones.
Gemstone education: Colored Gemstones Guide, Gems Library, Gemstone Treatments, Gemstone Glossary, Gems and Astrology,

All Transactions secure by Thawte certificate - click here to validate Ebay Power Seller Gem Certification Various Shipping Options Major Credit Cards Accepted

All trademarks and logos shown herein are the property of their respective owners. © Copyright, 1998-2011. All rights reserved. Use of this site constitutes acceptance of Return Policy, Privacy Policy and Trading Guarantee. Published and operated by David Wein Ltd. 32 Hollywood Road, Central, Hong Kong Island Hong Kong. Lost? Check site map or resources page.

Site design and maintenance by NetComposite ®.