Synthetic Star Sapphire & Ruby Star Gemstones 

A star sapphire is a gemstone composed of corundum, aluminum oxide, which displays asterism. This phenomenon arises from the presence in the gemstone of tiny strands of minerals that capture and reflect light in a star pattern. The star, which appears to move around as the position of the sapphire changes, usually has six rays, but 12-ray stars also sometimes occur. Star sapphires come in several colors, including blue, rose, smoky brown and translucent, which is especially prized. Linde star sapphires are synthetic gemstones that also exhibit asterism. Like the natural stones, they come in a variety of colors, though the stars in them do not move. Since their accidental creation, they have become very popular in gemstone jewelry.

Creation

The Brazilian Connection, an online retailer of gemstones and gemstone jewelry, conducted an interview with Jack Burdick, an inventor who worked for Linde Air Products Co. In 1947, Burdick and his colleagues were trying to create synthetic sapphires with consistent color throughout, a goal that had eluded chemists for decades. In the laboratory, Burdick and his team created sapphires with only titania in them. They heated the resulting gems for several days and then took them out of the furnace, only to learn that they were milky rather than clear.

SYNTHETIC STAR STONES PROPERTIES:

CHEMICAL COMPOSITION: ALO2
HARDNESS MOH'S: 9

SYNTHETIC STAR STONES:

1. STAR RUBY
2. STAR SAPPHIRE
3. TRANSPARENT STAR RUBY



Synthetic Star Ruby and Sapphire Stones 

 
 




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