本文關(guān)鍵詞：緬甸不同礦點(diǎn)翡翠礦物學(xué)特征研究　出處：《昆明理工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 緬甸翡翠礦點(diǎn) 翡翠 礦物學(xué)特征 X射線衍射 電子探針

【摘要】：目前,國(guó)內(nèi)外對(duì)于翡翠的研究主要集中在翡翠的礦物組成與礦物結(jié)構(gòu)、翡翠致色機(jī)理、翡翠的合成與鑒定和翡翠成因這四個(gè)方面。關(guān)于緬甸翡翠礦區(qū)主要是帕橄礦區(qū)(納莫礦點(diǎn))的翡翠礦體成因研究。本文主要針對(duì)緬甸九個(gè)不同的翡翠礦點(diǎn)原石進(jìn)行偏光顯微鏡、X射線粉晶衍射、紅外光譜、電子探針測(cè)試分析,對(duì)其主要礦物結(jié)構(gòu)、礦物組成、化學(xué)成分進(jìn)行系統(tǒng)對(duì)比研究。1.緬甸翡翠主要結(jié)構(gòu)為粒狀及柱狀變晶結(jié)構(gòu)。隆肯礦點(diǎn)翡翠主要呈柱狀變晶結(jié)構(gòu),呈定向-半定向排列；美靈江礦點(diǎn)硬玉破碎結(jié)構(gòu)嚴(yán)重。九個(gè)礦點(diǎn)翡翠原石主要礦物為硬玉。隆肯礦點(diǎn)翡翠次要礦物為透輝石、綠輝石、鈉長(zhǎng)石等；達(dá)木坎礦點(diǎn)翡翠次要礦物為鎂鈉閃石、方沸石、透閃石、綠泥石、石英、白云母等；翁巴勒翡翠樣品次要礦物為角閃石,鈉長(zhǎng)石；美靈江礦點(diǎn)翡翠次要礦物為綠輝石和鈉長(zhǎng)石；南莫卡礦點(diǎn)翡翠次要礦物為透輝石、綠輝石、石英；更因江礦點(diǎn)翡翠次要礦物為透輝石、綠輝石、鈉長(zhǎng)石、白云母等：納莫礦點(diǎn)主要礦物為硬玉,次要礦物有鈣十字沸石、桿沸石、鈉沸石和鈉長(zhǎng)石。2所有礦點(diǎn)樣品測(cè)試紅外譜峰基本均在1100-600 cm-1中頻區(qū)和600-300 cm-1低頻區(qū),與硬玉標(biāo)準(zhǔn)譜峰基本一致。紅外光譜中僅納莫礦點(diǎn)翡翠樣品在3844cm-1處有一寬的吸收帶,是該測(cè)試樣品沸石族中結(jié)晶水產(chǎn)生。3.在所采集樣品中翁巴勒礦點(diǎn)硬玉A1元素與K元素含量高于其他礦點(diǎn)硬玉中含量；達(dá)木坎樣品硬玉Na元素含量高于其他礦點(diǎn)硬玉中含量；摩西砂樣品硬玉Fe元素含量高于其他礦點(diǎn)硬玉中含量：南莫卡樣品硬玉Ti元素含量高于其他礦點(diǎn)硬玉中含量；美靈江樣品硬玉Mg含量高于其他礦點(diǎn)硬玉中含量；納莫礦點(diǎn)的翡翠樣品Si元素含量高于其他礦點(diǎn)硬玉中的含量。4翡翠礦物結(jié)構(gòu)緊密,微裂隙與晶體顆粒小,具有柱狀結(jié)構(gòu)且能較密集定向排列的翡翠,質(zhì)地相對(duì)較好。柱狀和纖維狀翡翠愈接近平行排列者透明度越好且質(zhì)地越佳,而無定向或近于束狀和放射狀排列者,翡翠質(zhì)地較差。
[Abstract]:At present, the research on jadeite is mainly focused on the mineral composition and mineral structure of jadeite, and the chromaticity mechanism of jadeite. The synthesis and identification of jadeite jade and the origin of jadeite jade. This paper focuses on the polarizing microscope of nine different emeralds from Myanmar. X-ray powder diffraction, infrared spectroscopy, electron probe analysis, the main mineral structure, mineral composition. The main structure of Myanmar jadeite jade is granular and columnar structure. The jadeite in Meilingjiang ore spot is badly broken. Nine jadeite primary minerals are jadeite and the secondary minerals are diopside, opyroxene, albite and so on. The secondary minerals of jade in Damukan ore spot are magnesium sodium amphibole, donalite, tremolite, chlorite, quartz, Muscovite, etc. The secondary minerals of Umbale jadeite samples are amphibole and albite. The secondary minerals of jadeite in Meilingjiang ore spot are opyroxene and albite. The secondary minerals of jadeite are diopside, omphacite and quartz. The main minerals of Jade are diopside, opyroxene, albite, Muscovite, etc.: the main minerals of Nemo ore spot are jadeite, the secondary minerals are calcium cross zeolite and stem zeolite. The infrared spectra of sodium zeolites and albite samples were basically in the medium frequency region of 1100-600 cm-1 and the low frequency range of 600-300 cm-1. It is basically consistent with the standard spectrum of jadeite. In the infrared spectrum only there is a wide absorption band at 3844 cm ~ (-1) in the sample of Nemo ore spot jadeite. The contents of A1 and K elements in the collected samples are higher than those in the other samples. The Na content in the samples of Damukan is higher than that in the jadeite from other ore spots. The Fe content of jadeite in Mosaic sand sample is higher than that in jadeite from other ore spots: the Ti element content of jadeite in South Mocha sample is higher than that in jadeite from other ore spot. Mg content of jadeite samples in Meilingjiang is higher than that in jadeite from other ore spots. The content of Si element in jadeite samples of Nemo ore spot is higher than that in jadeite of other ore points. 4. The mineral structure of jadeite is compact, the micro fissure and crystal particle are small, the jadeite has columnar structure and can be arranged in dense and directional way. The transparency and texture of columnar and fibrous jadeite were better than those of parallel arrangement, while those with no orientation or near bundles and radial arrangement were worse.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：P619.281

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