Anorthite and albite are important calcium-containing feldspars . 钙长石与钠长石是重要的含钙长石。
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Albite - anorthite series 钠长钙长系
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Its chemi - cal composition mainly contain potassium , natrium , calci - um . 1 . the potassic feldspar ; 2 . the albite ; 3 . the anorthite 长石是一类矿物的总称，化学成分是钾钠钙。
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2 . the albite : contains upper natrium element , mol - ecular formula : na2oal2o3 3 . the anorthite : contains the upper calcium elem - ent , molecular formula : caoal2o32sio2 钙长石：含钙量较高的长石，分子式： caoal2o32sio2
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In most recent studies , researchers have analyzed aluminum - rich minerals such as anorthite and hibonite using an ion microprobe , which bombards a sample with a focused ion beam to release secondary ions from the sample ' s surface 在最新的研究中，科学家使用离子微探针来分析钙长石、黑铝钛钙石等富含铝的矿物，以聚焦的离子束撞击样本，使样本表面释出次级离子。
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Feldspqr s degree of hardness motion between 6 - 6 . 5 , specific weight motion bet ween 2 - 2 . 5 . it s brittleness but have the higher anti - to press the strength , right sour have the stronger chemistry stability . the potassic feldspar s color many is red for meat , and also have the ash , white the brown . the albite is white , ash and buff the anorthite is white or shallow gray 长石的硬度波动于6 - 6 . 5 ，比重波动于2 - 2 . 5 ，性脆，有较高的抗压强度，对酸有较强的化学稳定性。钾长石颜色多为肉红色，也有灰白褐色。钠长石为白灰及浅黄色，钙长石为白色或浅灰色。
