glow in the dark stones

Fluorite: also known as "fluorspar", the color often has green, purple, blue, yellow, red and other colors. Causes of fluorite is through the geological underground hydrothermal hydrogen fluoride and stones for driveway (limestone) is generated between the fluorite minerals. China is very rich fluorite resources, geological reserves second only to Mexico and the second in the world. The past 10 years, has worked in northern Guangdong, Henan, Inner Mongolia, Xinjiang and Hunan and other places, discover fluorite having phosphorescence effects, some have tough grind into a ball "Night Pearl" sold to Beijing, Shanghai, Guangzhou, Hong Kong, Taiwan and Southeast Asia , Africa and other places.
Apatite: calcium phosphate mineral in nature, pure quality colorless, transparent, common mostly yellow, green, gray and purple, dark red, gray and other colors. Apatite is heated, there may be a variety of colors of phosphorescence. Transparent quality apatite as mid-range gems. China apatite mainly produced in Xinjiang, Inner Mongolia, Hebei, Gansu, Yunnan, Henan and other places.
Scheelite: calcium tungstate mineral, color was transparent and colorless, gray, yellow, pink, gray, purple and other colors, glass, adamantine luster. Synthetic scheelite commonly used for diamonds and substitutes. Scheelite by heating and UV irradiation, with Luo strong phosphorescence. China is rich scheelite resources, mainly produced in Hunan, Jiangxi, Fujian land, but is suitable for gems and glow in the dark stones are less luminous.
Diamond: natural diamond is the only mineral in nature by a single carbon (C) composed of colorless and transparent, yellow and green, red, purple, gray and other colors. Colorless, flawless diamond is the most expensive diamond jewelry. After the diamond bright sunlight can find green blue phosphorescence. World diamond mainly from Australia, Zaire, South Africa and other countries. China's diamond mainly produced in Liaoning, Shandong