1.This paper introduces especially geologic features of occurred feldspar druses in granite pegmatite veins of rock crystal and of rare metal minerals, and discribes 6 kinds of feldspar druse. They are pink potash feldspar druse, white potash feldspar druse, white petal like albite druse, white stair like albite druse ,White sheaf like albite druse and transparent plate lile albite druse.
介绍了长石晶簇在含水晶花岗伟晶岩和稀有金属花岗伟晶岩岩脉中产出的地质特征 ,并对六种长石晶簇 (肉红色钾长石晶簇、白色钾长石晶簇、白色花瓣状钠长晶簇、白色阶梯状钠长石晶簇、束状钠长石晶簇和透明板状钠长石晶簇 )进行了描述。
2.However, the later stage (Cretaceous) intrusive rocks are composed of alkali feldspar quartz syenite, quartz synenite, quartz monzonite, alkali feldspar granite and K feldspar granite, with higher SiO 2, Na 2O+K 2O and K 2O, but lower Al 2O 3, Na 2O/K 2O than those of earlier stage intrusive rocks;
晚期 (白垩纪 )侵入岩由碱长石英正长岩、石英正长岩、石英二长岩、碱长花岗岩、钾长花岗岩构成 ,以钾玄岩系列岩石为主 ; 比早期岩石富SiO2 ,低Al2 O3、富Na2 O +K2 O和K2 O ,但低Na2 O/K2 O ;
3.The metamorphosed volcanic rock of the upper member of the Haizhou group is rich in alkali-feldspar (60 to 70%) and high potash feldspar (35 to 60%).
苏北海州群云台组上段变火山岩富含碱性长石(60-70％)和钾长石(35-60％),黑云母为富铁黑云母,部分火山岩含霓辉石、萤石等.
4.The Langkou potash feldspar deposit is one of potash feldspar deposits of weathering type of megaporphyritic medium-coarse grain hornblende biotite adamellite found within Fujian Province in recent years.
沙县琅口钾长石矿是近年来福建省发现的巨斑状中粗粒角闪黑云二长花岗岩风化型钾长石矿床。
5.Accurate Determination of Potassium and Sodium in Potash Feldspar and Soda Feldspar Reference Samples
钾长石和钠长石标准样品中钾和钠的准确测定
6.Coexisting minerals quartz, feldspar and biotite vary widely in δ18O values and display a conspicuous 18O/16O disequilibrium relation; especially, a quartz-feldspar reversal (△18OQ-F<0) exists in the Aral granite pluton, Altay Mountains, northern Xinjiang.
新疆阿尔泰阿拉尔花岗岩中共生石英、长石、黑云母的δ~(18)O值具有宽广的变化范围,3者表现出显著的~(18)O/~(16)O不平衡关系,尤其是石英、长石具有倒转△~(18)O_(石英-长石)关系(△~(18)O_(石英-长石)<0)。
7.The process of separating impregnated iron from potash feldspar has been studied in alkaline solution by JC-COP activator and enhanced leaching agent after reelection and magnetic separation, as a result, the content of Fe2O3 in potash feldspar product decreases from 4.05% to 0.1%~0.2%, and its color becomes white from pink, its quality is high, and the economic benefi t will be improved.
研究了钾长石经重选、磁选后,利用JC-COP铁活化剂、增浸剂在碱性条件下分离钾长石中浸染型铁,可使钾长石中Fe2O3含量从4.05%降低至0.1%~0.2%范围,产品由淡粉红变为纯白色,达到优质产品标准,提高了经济效益。
8.At 200~250℃, on hydrothermal-dissolving potassium feldspar with CaO as additive, in the condition of different Ca/Al+Si atom ratios, liquid/solid weight ratios, reaction temperature and reaction time, the dissolving rate of K2O from potassium feldspar and phases transformation in the solid were investigated.
以氧化钙为助剂,在200~250℃的水热反应条件下分解钾长石,研究了在不同的Ca／Al+Si、水固比、反应温度和反应时间下,钾长石中氧化钾的溶出率和固相的物相变化。
9.The final feldspar product with the second grade quality for the ceram and galss was obtained,and the recovery of feldspar is about 70~75%.
试验得到的长石产品可达到玻璃及陶瓷Ⅱ级原料的质量标准,其矿物回收率约为70%~75%。
10.The results show that essential difference is existed in absorption spectum of potash feldspar between gold-bearing and gold-barren deposits and the visible absorption spectral characteristics of potash feldspar would be the important exploration criteria of the Wulashan-type gold deposits.
结果表明，含矿与不含矿钾长石的吸收光谱有着本质的差异，钾长石的可见光吸收光谱特征可作为乌拉山式金矿的重要找矿标志。
