14 Days Free Returns
 Free US$15 shipping coupon for first time order code FS1
Total SKU's 11,614
Vendors 48
Registered Members 3,518
 Gem Guide
- Birthstones
- Gold and Other Precious Metals
- Gemstones By Color
- Gemstone Sizes and Weights
- The Nine Sacred Navaratnas
- Ruby Buying Guide
- Physical Properties of Gemstones
- Sapphire Buying Guide
- Anniversary Gemstones
- Gemstone Attribute Table
- AIGS Master Color Chart
- Gemstone Color and Clarity Guide
- Gemstone Cut and Appraisal Guide
- The Mohs Hardness Scale
Gems Directory
  JTC Standing Showcase for Rent
  JTC Office Space for Rent
  JTC Jewelry Booth for Rent
  JTC Retail Showroom for Rent
  JTC Condominium for rent
Search Result > Total (2) Items Found. Sort By :  Price  |  Price Per Carat  |  Weight  |  Shape 

Alongside the more common andalusite and kyanite, sillimanite is one of three aluminosilicates that may occasionally be fashioned into gemstones. The mineral also has many important industrial uses relating to ceramics, glass-making, and the smelting of iron and steel.

While transparent, light-toned grayish, yellowish, brownish, greenish and/or bluish crystals are sometimes faceted, the most commonly encountered gem sillimanites are the cabochon-cut cat’s eye specimens. These are usually formed from a fibrous sub-variety known as “fibrolite”, and often possess a translucent dark gray or opaque reddish-brown coloration. However, near-colorless chatoyant material is also encountered with significantly higher levels of transparency.

Named after the nineteenth century American chemist Benjamin Silliman, most gem-quality sillimanite is sourced in Sri Lanka, India, Kenya and Myanmar’s famous Mogok gemstone tract. In addition, it has also been designated as the official state mineral of Delaware.

<<   Previous
Next  >>   [ Page 1 of 1  ]   [ 2  / 2 ]
Cat's Eye Fibrolite
$ 95.00
6 pcs 4.58cts

<<  Previous
Next  >>   [  Page 1 of 1 ]

  Category List

Learn more about Gemstones
  Our Policy
Price Index
Gemstone Enhancement Codes
  Customer Services
Contact Us
  About Gemwow.com
AIGS Thailand
Jewelry Trade Center