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 File Gunderloy wrote that the original Gemstone File was simply a list of contributors to Committee to Re-elect the President (CREEP), while the subsequent versions gradually linked various figures of the Watergate and Kennedy eras. The Gemstone File proposes that Aristotle Onassis, Joseph P. Kennedy, and other prominent figures were involved in various schemes to forward a vast global conspiracy, involving the Mafia and corrupt politicians, brutal oil and drug cartels, rogue military operations, and more. It also posits that early in 1957, Aristotle Onassis had Howard Hughes kidnapped from his Beverly Hills Hotel bungalow; that Hughes suffered a massive brain