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
Misamis Occidental Aquamarine Park Misamis Occidental Aquamarine Park Misamis Occidental Aquamarine Park is a tropical resort and a prominent habitat for various marine mammals in Mindanao, Philippines. Located in the boundaries of municipalities of Tudela, Misamis Occidental and Sinacaban, Misamis Occidental. Currently, it features a wildlife park that houses a wide array of animals, most are native to the Philippines. It also features hotel accommodations of hut-style suite cottages that line the mangroves. There is a restaurant located within the park itself. Currently, the Dolphin Island is undergoing rehabilitation and temporarily closed to visitors until further notice. The aquamarine park is readily accessible by