Lawsonite
劳森石
 | CaAl2Si2O7(OH)2.H2OCaAl₂Si₂O₇(OH)₂·H₂O
These samples of lawsonite are displayed in the Smithsonian Museum of Natural History. Lawsonite is a silicate mineral of calcium and aluminum with the composition CaAl2Si2O7(OH)2.H2O. The sample at left is about 8 cm across and is from Franciscan Complex, California. This mineral forms only at the high pressures within subduction zones. The blocky, bluish-white crystals are lawsonite. The fibrous, dark blue crystals are glaucophane. 这些法氏石样品陈列在史密森尼自然历史博物馆中。法氏石是一种含钙和铝的硅酸盐矿物，化学式为CaAl₂Si₂O₇(OH)₂·H₂O。左侧样品宽约8厘米，来自加利福尼亚州的弗朗西斯卡复合体。这种矿物仅在俯冲带内的高压条件下形成。块状、蓝白色晶体是法氏石，而纤维状、深蓝色晶体是蓝闪石。
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This lawsonite sample is about 12 cm across. 这个法律石样本的直径大约是12厘米。 |  |
Mindat: Lawsonite
Mindat: 法拉石
| Minerals
矿物 |
索引
| HyperPhysics*****Geophysics
HyperPhysics ***** 地球物理学 | R Nave |
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