Sillimanite Back to GEMSTONE CONSIGNMENT AUCTION #208

• Starting Time:2/18/2010 07:00:00 PM(CST)
• Ending Time:2/25/2010 07:00:00 PM(CST)

• Time Left:Auction Is Closed

• Size:2.75 ct
• Size Description:11.01 mm x 8.47 mm

Description:Sillimanite is actually trimorphous with Kyanite and Andalusite which means that they have the same chemistry, but different crystal habits create different minerals, just like Brookite, Anatase and Rutile. Sillimanite is sometimes called "Fibrolite" because of the fibrous nature of the material, but this stone is different from most Sillimanite on the market. This is actually pretty rare material, and one of the few I've seen in this clarity. This stone has a very light blue color, but the sheer eye clean clarity of this gem makes is very special. I don't get many of these stones, and considering that the large majority of the Sillimanite in the world is used for cat's eye stones, means that clean material is very difficult to find. Valued at $165 retail. PLEASE NOTE: The photos show a slight blue "sheen" reflecting in the light, but this was a reflection from the photo table, and does not actually appear in the stone. Please keep this in mind when bidding. The stone is a very pale blue color in person.