尖晶石

The harzburgite inclusions in western Liaoning could be relicts of partial melting of the mantle-derived peridotites; the amphibole-bearing spinel lherzolites could be representative of Phanerozoic accreted lithospheric mantle; the pyroxenite xenoliths with cumulate textures would be the cumulates of magma derived from asthenosphere in the upper mantle; the granulite and gneisses with crystalloblastic textures could be derived from the lower crust in the region.

辽西尖晶石方辉橄榄岩为地幔橄榄岩部分熔融的残留体；含角闪石的尖晶石二辉橄榄岩可能代表了显生宙新增生的岩石圈地幔；具有堆晶结构的辉石岩类包体为源于软流圈的母岩浆在上地幔顶部的堆积层；而具有变晶结构的麻粒岩和片麻岩类岩石包体则代表了本区下部地壳的物质组成，是岩浆上升过程中捕虏的深部地壳岩石包体。

Heat flows derived from garnet, chromite/chromium-spinel and pyroxene of xenoliths, xenocrysts in Mengyin and Fuxian kimberlites are higher than 40mW/m〓 calculated from the pyroxene inclusions in diamonds, and the range of pressure is 20～40kb (equivalent to 65～130km). Metasomatism (as indicated by yimengite and lindsleyite in Mengyin) is very strong in this depth range. Lherzolite, wehrlite, and diamond-free high-Ca harzburigite around the world are derived from this depth also. The observation suggests that the low-Ca harzburigitic environment for diamond stability had been changed significantly when the kimberlitic magmas erupted. This resulted from fluid interaction with harzburigite. The geotherm of the Cenozoic lithospheric mantle beneath Eastern-North China platform is higher than oceanic one. The temperature from the interior of the Tan-Lu faults is higher than that from apart off the fault.

除金刚石中的辉石温压投点落于40m W/m〓占地温线上外，捕虏体及捕虏晶中石榴石，铬尖晶石及单斜辉石的投点均偏离该地温线，显示较高的地温特点，而且捕虏体及捕虏晶的压力范围多在20-40kb(相当于65-130km)间，该深度范围内地幔的交代作用特别发育，如蒙阴大量发育的沂蒙矿、钛钾铬石等就发育于该深度范围，世界范围内不含金刚石的高钙方辉橄榄岩、二辉橄榄岩、异剥橄榄岩也分布于该区中，一方面表明捕虏体的主要取样位置已不在金刚石稳定区中，另一方面也表明金刚石稳定的橄榄岩环境，在金伯利岩侵位并捕虏他们时已发现了明显的改造，这种改造作用主要是通过长期的熔流体与先存的橄榄岩相互作用的结果。

The transparent red spinels are called spinel-rubies or balas-rubies and were often confused with actual rubies in ancient times.

透明红色尖晶石被称为尖晶石或巴拉斯红宝石，红宝石，往往混淆实际的红宝石，在远古时代。

Spinel-rich spherule is a special Ca-, Al-rich inclusions in chondrites. Two spinel-rich spherules (GRV 020025-3R18 and GRV 021579-3R15) have been found from GRV 020025 and GRV 021579 carbonaceous chondrites collected from the Grove Mountains, Antarctica.

富尖晶石球粒状CAI是球粒陨石中一种特殊类型的CAI，在南极格罗夫山碳质球粒陨石GRV 020025和GRV 021579中共发现两个富尖晶石球粒状CAI-GRV 020025-3RI8和GRV 021579-3RI5。

Our main product include cubic zirconia, synthetic ruby, synthetic sapphire, synthetic spinel, glass diamond, glass, jewel bearings, etc. At the same time, we produce and process natural gems like peridot, garnet, white topaz, rock crystal, amethyst, citrine, coral, tourmaline, etc.

主要生产加工石榴石、白黄玉、紫晶、黄晶、茶晶、电气石、橄榄石、蓝宝石、红宝石、珊瑚等天然宝石；同时，还生产加工立方氧化锆、红刚玉、蓝刚玉、尖晶石、玻璃水钻、及稀土玻璃等人造宝石产品。

Our main product include cubic zirconia, synthetic ruby, synthetic sapphire, synthetic spinel, glass diamond, glass, jewel bearings, etc. At the same time, we produce and process natural gems like peridot, garnet, white topaz, rock crystal, amethyst, citrine, coral, tourmaline, etc.

主要生产加工蓝宝石、红宝石、石榴石、白黄玉、紫晶、黄晶、茶晶、电气石、橄榄石、蓝宝石、红宝石、珊瑚等天然宝石；同时，还生产加工立方氧化锆、红刚玉、蓝刚玉、尖晶石、玻璃水钻、及稀土玻璃等人造宝石产品。

Among spinel group minerals, only magnesium spinel is found as transparent gem crystals with various colors, mostly in crystalized calcite-marble metamorphosed rocks and its alluvial deposits of Burma, Srilanka, Afghanistan, Vietnam and in Tazania.

尖晶石产生于岩浆岩和接触变质岩中，宝石级的尖晶石大多和红蓝宝石一起产自大理岩中。

In this article, the spinel with both four groups of six-pointed star and three groups of four-pointed star have been studied by means of conventional gemmological techniques, Raman spectroscopy and electron probe.

利用常规宝石学技术、拉曼光谱技术和电子探针对具有多组六射星光和四射星光效应的尖晶石进行了研究，发现由于存在多组定向排列的针状包裹体，使尖晶石产生多组星光效应。

Four-pointed or six-pointed star sometimes can be seen in a spinel, but it is rarely reported that there are multiple groups of asterism on the same spinel.

常见尖晶石有六射或四射星光。对同时具有多组星光效应的尖晶石少见报道。

From end of 1990's, Ilalakaka alluvial deposit of Madagascar has been known as the major spinel of fantastic shades.

1990年末，在马达加斯加的依拉卡卡地区发现大量的颜色丰富的尖晶石，这里逐渐成为优质尖晶石的主要产地。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。