Gemstones, Diamonds, Pearls - Multicolour.com
My Shopping Cart My Account Gem Library
|Welcome to Multicolour.com|Single Stones|Calibrated Stones|Pairs|Mix Lots|Closeouts|Carved Gems|lapidary and gemological tools and supplies|Gem Smart Search|
 Home / Gem Library / Natural Gemstones / Amblygonite March 28, 2024  


Natural Amblygonite
E-mail this article to a friend

There are 6 Amblygonite(s) available at Multicolour.com


Amblygonite is a collector stone occasionally clean enough to be faceted. The most important sources for amblygonite are the deposits in Sao Paulo and Minas Gerais, Brazil. Amblygonite forms in large rough triclinic crystals with a tabular habit and perfect basal cleavage. The mineral is a fluophosphate which like topaz, has the fluorine replaceable by the hydroxyl group.


Known Facts
Color Key: Generally white or creamy, but can also be colorless or pale yellow, green, blue, beige, gray, brown or pink.
Chemical Composition: (Li,Na)Al(PO4)(F,OH)
Hardness: 6
Density: 3.015 – 3.033
Crystal Group: Triclinic
Ocurrence: Brazil, U.S.A., France, Australia, Namibia

Amblygonite is prismatic to columnar in form with good cleavage is in several directions. The fracture is irregular- uneven or sub-conchoidal. The luster is vitreous to pearly and faceted stones are very rarely clean. Amblygonite is biaxial and may be either positive or negative. The birefringence values range from .020 - .027 and pleochroism is weak or unobservable. Ultraviolet fluorescence may be a very weak green in long wave along with some light blue phosphorescence in long wave and short wave UV.


Illustrations
Amblygonite Amblygonite
Check our Top, Largest, Smallest or Latest Amblygonite's.


Amblygonite Stats/
Popularity Index: 51954hits
Total Items: 6items
Total Weight: CTS 23.24
Cheapest: USD 181.20
Most Expensive: USD 303.60
Largest: CTS 5.06
Smallest: CTS 3.02
Last Added: 05/17/18 10:32:13

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 Amazon.com 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 Multicolour.com recommendations

 Top of Page Need help?  

Gemstones for sale: Alexandrite, Garnet, Diamond, Opal, Spinel, Sapphire, Tourmaline, Tanzanite, Tsavorite,
Gemstones by Category: Calibrated, Carving, Closeout, Jewelry, 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 Multicolour.com, 1998-2011. All rights reserved. Use of this site constitutes acceptance of Multicolour.com 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 ®.