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 air either via Labo Airport in nearby Ozamiz City (22 minutes away) or Dipolog Airport (2 hours and 30 minutes away) which serves the nearby Zamboanga del Norte province. Both airports have domestic flights to and from Manila and Cebu. There are also direct transfer flights via the Manila's Ninoy Aquino International Airport that readily connect the park to other destinations in the world. 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