角闪石

And further because the amphibole includes the few burning ion to present blue, green, black, yellow isochromatic or varicolored.

又因角闪石含有少量氧化金属离子而呈现青、绿、黑、黄等色或杂色。

Kb, probably in the crust-mantle transition zone. The plagioclase phenocrysts are dominantly andesine with reverse zoning, and those of hornblende are Al-rich (Al2O3 ~15.9 wt%), indicative of high-pressure crystallization.

斜长石斑晶主要为中长石且具反向分带，而富铝的角闪石斑晶（Al2O3 ~15.9 wt%）也反映了高压结晶的特点。

As a result, if the iridescence is produced by thin-film interference, not only the thickness of lamellar structure must be defined within a certain nanometer, but also the refractive index need to be different between lamellar structure. In other words, the chemical composition, refractive index and thickness of exsolution lamellae need form to trinity, such as labradorite, albite, andradite and orthoamphibole. If the iridescent color is produced by grating-diffraction, the lamellar structure just needs to be arrayed regularly, the spacing of the edges of lamellar structure needs to be regular and narrow, but not necessarily within the range of the wavelength of visible light, such as shell of abalone, pearl and opal.

薄膜干涉式晕彩不仅要求宝石内部结构层的厚度必须在一定的纳米范围内，而且结构层内部的折射率也必须有所差别，也即，当结构层由两相组分出溶而成，其化学成分、折射率和结构层厚度形成三位一体时，符合薄膜干涉式晕彩，如拉长石、钠长石、石榴石和角闪石；而光栅式衍射晕彩则仅要求结构层排列规则，边缘狭窄但不需要窄到可见光波长范围内，能使入射光的振幅或位相，或两者同时产生周期性空间调制的结构即可，如鲍贝壳、珍珠和欧泊。

Pyroxene megacrysts formed under the temperatureof 1200.85-1288.85℃ and the pressure between 0.93 and 1.67GPa, amphibole megacrysts crystallizedunder the pressure of 0.83-0,89GPa, temperature about 1000℃, and anorthoclase maybe at thetemperature of 900℃ around.

辉石巨晶形成的温度压力范围分别为1200.85—1288.85℃和O.93—1.67Gpa，角闪石结晶温度在1000℃左右，压力为O.83一O.89GPa之间，歪长石巨晶结晶温度可能在900℃左右。

Based on major and trace elements and isotope geochemical data, it is inferred that Sandouding suite is formed by magma melting of Late Archeozoic continent tholeiite source, and its geochemical variation is controlled by hornblende fractional crystallization. Besides fractional crystallization, the geochemical variation of Huanglingmiao suite is related to the mixing between dacitic magma and felsic magma. Dalaoling suite is probably derived from early Precambrian volcanics.

根据岩石化学和同位素组成推断，三斗坪岩套的源岩主要是晚太古代大陆拉斑玄武岩，母岩浆相当于英安质，岩套内的成分变化主要受角闪石分离结晶作用控制；黄陵庙岩套除受分离结晶作用影响外，成分变化主要与英安质母岩浆和某种长英质岩浆的混合有关；大老岭岩套的源岩亦为早前寒武纪火山岩。

The turbidite sandstones in the study area can be classified at least into six types based on the combination of the quantitatively major heavy minerals such as opaque minerals, hornblende, hypersthene, and augite.

基于主要重矿物，比如蛋白石、普通角闪石、紫苏辉石和普通辉石的定量综合分析，至少可将研究区的浊积砂岩划分为6种类型

Both the core and the mantle have inclusions of biotite, hornblende, quartz and plagioclase .

内核和外壳中均发育石英、斜长石、黑云母、角闪石等矿物的包裹体；

The 40Ar-39Ar dating of hornblende and biotite from four granitoid intrusives in the southern margin of the North China Block was made in the paper.

对华北地块南缘4个中生代花岗质岩体中的角闪石和黑云母进行了40Ar-39Ar定年研究。

From the plateau ages of hornblende and biotite N14, a cooling rate of 21.7℃/Ma was calculated for the locality, showing faster cooling.

由N14糜棱岩中的角闪石与黑云母坪年龄得到该处的平均冷却速率为21.7℃/Ma，属于较快速的冷却。

The petrogenesis of intrusive rocks is discussed in this paper according to the equilibrium of minerals. It is suggests that in the Shigujian pluton, the designations of plagioclases are 15 - 25, the plagioclases are all oligoclase; the biotites are Mg-biotites, and most of the amphiboles are edenitic amphiboles or edenite; paragenetic ...

结果表明：（1）石鼓尖侵入岩中，斜长石成分较稳定，共生角门石和黑云母为岩浆平衡结晶的矿物；（2）天堂寨和九资河侵入岩中，部分斜长石和黑云母可能为熔蚀残留矿物，角闪石属于火成岩区的新生矿物，可能为斜长石和黑云母发生熔融反应所形成；（3）三个侵入体的岩石均为岩浆成因。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

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集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐