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 - epidote - amphibolite facies 钠长帘闪岩相
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Epidote albite pegmatite 绿帘钠长伟晶岩
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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
There are three genetic types of mineral deposits in the beiya ore district : cu - au polymetallic deposits related to alkaline porphyries , comprising porphyritic cu - au deposits and polymetallic skarn deposits related to quartz - albite porphyry and quartz - k - feldspar porphyry ; fe - au deposits related to gabbro or basalt magma , consisting of magmatic fe - au deposits and sedimentary polymetallic deposits formed in caves and lakes ; and palaeo - placers formed at the weathering surface , in lakes and in karsts 北衙金矿有3种成因不同的矿床：与碱性斑岩有关的铜金多金属矿，包括与石英钠长斑岩和石英正长斑岩有关的斑岩型铜金矿床和矽卡岩型多金属矿床；与辉长玄武岩浆有关的铁金矿床，包括熔浆型铁金矿床和喷流沉积型多金属矿床，后者又有洞穴和湖相沉积环境之分；及古砂矿，有古风化壳型砂矿、河湖相古砂矿和洞穴沉积古砂矿。
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The high - pressure metamorphic rocks in northeastern jiangxi province include such types of rocks as jadeite - bearing aegirine - augite albite amphibole schist , jadeite - bearing aegirine - augite quartz albitite , aegirine - augite - bearing amphibole quartz albitite , aegirine - augite - bearing albite amphibole schist , winchite quartz albitite , and magnesio - riebeckite quartz albitite 摘要赣东北高压变质岩包括含硬玉霓辉石钠长角闪片岩、含硬玉霓辉石石英纳长石岩、含霓辉石角长闪石英钠长石岩、含霓辉石钠长角闪片岩、蓝透闪石石英钠长石岩、镁钠闪石石英钠长石岩等岩石类型。
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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。
