Chemists use infrared spectrometers to uncover chemical clues such as the unique infrared signature of each calcite mineral layer -- information that helps archaeologists figure out whether they 're looking at a floor , wall or kiln .
The plan is that instead of being released , the gas will be redissolved in cooler water and injected to a depth of up to 800 metres , into suitable basalt formations where , the hope is , it will react to form calcite or dolomite .
Though no sunstones have survived from viking days , despite the frequency of ship burials of viking chiefs , there is one tantalising find from a more recent shipwreck . 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 .
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 .