夜明珠在古代一直是个迷，夜明珠在古代民间又名叫“夜光壁”、夜光石”、“放光石”，相传是世界上极为罕见的夜间能发出强烈光芒的奇宝，能让黑夜的房间犹如白昼。其实夜明珠是一种稀有的宝石，古称“随珠”、“悬珠”、“垂棘”、“明月珠”等。
the night pearl has been a in times. in times, the night pearl is also "night light wall", "night light stone" and "light stone". it is said that it is a rare in the world that can emit light at night. it can make the room of night like day. in fact, the night pearl is a kind of rare gem, which was " the pearl", "hang the pearl", "hang the thorn", "moon pearl" in times.
它是地球大地内的一些发光物质经过了几千万年，由最初的火山岩浆喷发，到后来的地质运动，集聚于矿石中而成，含有这些发光稀有元素的石头，就是人们所说的夜明珠，常有黄绿、浅蓝、橙红等颜色，夜间会发出美丽的荧光，这种发光性明显的表现为昼弱夜强。
after tens of of years, some in the earth are by the of the first magma and the . the these rare , which are night , often have of green, light blue, red, etc., and emit at night. this kind of is by weak day and night 。
重：192.6g / : 192.6g
上图为蔡先生所藏的一颗夜明珠，在黑暗中，人眼能明视的，天然的、能自行发光的珠宝。
the above is a pearl by mr. cai. in the dark, it is a and self jewel that can be seen by human eyes.
白天浅黄温润，可到了夜间无光的地方，却能发出明亮的绿色，兼有玉石之润，钻石之灿，且转之，流光熠熠。置其于暗室，自然呈现有莹亮青绿之色。莹莹磷光，耀之一室，使人不禁喜爱。此颗罕见的夜明珠不论其科研价值还是收藏价值，都远超于地球上的许多珍贵文物。
it's light and warm in the , but it can give out green when you go to the place light at night. it also has the of jade, the of , and turns it, and the light is . in the , it a green color. , one of the rooms, can not help but love. the value and value of this rare night pearl are far than many on the earth.
据说慈禧太后入葬时，口中含有一颗夜明珠，可分开两块，合拢就是一个圆球，分开透明无光，合拢时透出一道绿色寒光，夜间百步之内可照见头发。可见夜明珠在古代就已经是官宦富贵人家珍藏的宝物，收藏价值无可限量！
it is said that when cixi was , there was a night pearl in her mouth, which could be into two parts. when she was , it was a ball. it was and light. when she was , there was a cold green light. her hair could be seen a steps at night. it can be seen that in times, the night pearl has been the of rich and noble , with value!
