Gemstone value of the stone. Some treatments are used widely because the resulting gem is stable, while others are not accepted most commonly because the gem color is unstable and may revert to the original tone. Heat can improve gemstone color or clarity. The heating process has been well known to gem miners and cutters for centuries, and in many stone types heating is a common practice. Most citrine is made by heating amethyst, and partial heating with a strong gradient results in “ametrine” – a stone partly amethyst and partly citrine. Aquamarine is often heated to remove yellow tones, or
Gemstone (database) was a software engineering manager from Electro Scientific Industries, and Monty Williams. Servio Logic was renamed GemStone Systems, Inc., in June 1995. The firm developed its first hardware prototype in 1982, and shipped its first software product (GemStone 1.0) in 1986. The engineering group resides in Beaverton, Oregon. Three of the original cofounding engineers, Bob Bretl, Allen Otis, and Monty Williams (now retired), have been with the firm since its start. GemStone's owners pioneered implementing distributed computing in business systems. Many information system features now associated with Java EE were implemented earlier in GemStone. GemStone and VisualWave were an early