Iceland spar is a form of calcite that splits light into two beams .
冰洲石是方解石的一种存在形式，它可以把光线分成两束。
Mineral composition with mica is given priority to , time for chlorite , quartz , a small amount of pyrite and calcite .
矿物成分以云母为主，次为绿泥石、石英，少量黄铁矿和方解石。
The white cliffs of dover on england 's east coast are the towering remains of a calcite land bridge that once connected england with mainland europe .
多佛白悬崖位于英格兰的东海岸，是峭壁高耸的方解石陆地桥的遗骸，曾经连接英国与欧洲大陆。
This is a large calcite crystal recovered from a vessel that went down off the coast of alderney , in the channel islands , in elizabethan times .
在一艘从海峡群岛的奥尔德尼海岸沉落，伊利莎白时代的船上回收了一块很大的方解石晶体。
We then used a quartz calcite , which has an effect on light that depends on the direction the light is propagating , to measure the direction as a function of position .
