Specimen #2384

Name: Star Sapphire

Type: Gem

Locality: Sri Lanka

Favorite? N

Fluorescent? N

Size: 5.60 x 4.60 mm

Weight: 0.86 ct

Acquired: 2012-01-26

Source: Arkenstone Auction

Label: N

Comment: Supposed to be a "star sapphire" but I don't see the star! Sapphires come in virtually every color of the rainbow and there are more to Sapphires than simply faceted stones. The most commonly known variety of "Star" gems are Star Sapphires. This phenomenon known as "asterism" occurs when Sapphires are polished into cabochons and oriented in a manner that reflects tiny silk-like inclusions that are trapped inside the Sapphire. The inclusions bend light entering the Sapphire and create the star-like pattern. A six-rayed white star appears in bright lighting and the quality is judged by sharpness of star, symmetry of the rays, and the body color. This gem has sharp "legs" which are best seen under strong light to show off the "star". The color of this gem is a beautiful medium blue. A good representative stone of this well known material.

Minerals: Sapphire - blue

There is one picture on file

M02384-01.jpg:

Star Sapphire, Sri Lanka - FOV: 5.60 x 4.60 mm (0.86 cts)