Gemstone irradiation produce mixtures of blue and yellow-to-brown colors, so heating is required as an additional procedure to remove the yellowish color. In some cases, the new colors induced by artificial irradiation may fade rapidly when exposed to light or gentle heat, so some laboratories submit them to a "fade test" to determine color stability. Sometimes colorless or pink beryls become deep blue upon irradiation, which are called Maxixe-type beryl. However, the color easily fades when exposed to heat or light, so it has no practical jewelry application. Gemstone irradiation The gemstone irradiation is a process in which a gemstone is artificially
Gemstone (database) web application server platform. (VisualWave and VisualWorks are now owned by Cincom.) GemStone played an important sponsorship role in the Smalltalk Industry Council at the time when IBM was backing VisualAge Smalltalk, now owned by Instantiations, Inc. After a major transition, GemStone for Smalltalk continued as "GemStone/S" and various C++ and Java products for scalable, multitier architecture distributed computing systems evolved into the "GemStone/J" product. This in turn gave rise to "GemFire", an early example of a Data Fabric for complex event processing (CEP), event stream processing (ESP), data virtualization, and distributed caching. On May 6, 2010, SpringSource, a division