本文選題：綠輝石 + 硬玉　； 參考：《中國(guó)地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：翡翠作為玉石中最重要的品種,以其豐富的顏色、明亮的光澤、細(xì)膩的質(zhì)地、良好的韌性被眾人喜愛(ài)與追捧,現(xiàn)已形成翡翠獨(dú)特而完整的產(chǎn)業(yè)鏈,文化、設(shè)計(jì)、加工、市場(chǎng)供求關(guān)系、品牌銷售,被視為最具收藏價(jià)值、觀賞價(jià)值和文化價(jià)值的玉石品種之一。墨翠作為一類極為特殊的翡翠品種,因其在透射光下為墨綠色,反射光下為黑綠色而與眾不同。目前對(duì)于墨翠的認(rèn)識(shí)僅為其礦物組成主要為綠輝石,而國(guó)標(biāo)中對(duì)翡翠的定義中并未明確指出絕大部分(或全部)為綠輝石礦物組成的集合體是否可定義為翡翠;業(yè)界也迫切需要解決墨翠的質(zhì)量評(píng)價(jià)及其影響因素的科學(xué)問(wèn)題。本文通在收集不同質(zhì)地、顏色、透明度、凈度的代表性樣品,并查閱國(guó)內(nèi)外成果基礎(chǔ)上,通過(guò)進(jìn)行常規(guī)寶石學(xué)特征測(cè)試和偏反光顯微鏡觀察,運(yùn)用電子探針、紅外光譜、紫外可見(jiàn)光光譜等現(xiàn)代測(cè)試技術(shù),對(duì)其基本寶石學(xué)性質(zhì)、礦物組成、結(jié)構(gòu)構(gòu)造及譜學(xué)特征等進(jìn)行分析。研究表明,墨翠顏色可有偏藍(lán)色調(diào)、偏黃色調(diào)和偏褐色調(diào)的墨綠色,透明度為不透明—半透明,單位透過(guò)率為大多分布在10%-25%之間,內(nèi)部可見(jiàn)團(tuán)塊狀、絮狀和點(diǎn)狀等內(nèi)含物及紋理裂紋等;墨翠結(jié)構(gòu)根據(jù)顆粒大小可劃分為不等粒變晶、斑狀變晶、隱晶變晶、細(xì)粒變晶等結(jié)構(gòu),根據(jù)形態(tài)可具有纖維變晶、柱狀變晶等結(jié)構(gòu),根據(jù)相互關(guān)系可具有斑狀交代殘余和脈狀充填結(jié)構(gòu)。質(zhì)量較好的墨翠主要組成礦物為綠輝石,質(zhì)量較差的為硬玉質(zhì)或含硬玉成分較多的綠輝石巖。使用肉眼及顯微鏡觀察宏觀、微觀現(xiàn)象,結(jié)合大型儀器的數(shù)據(jù)分析,通過(guò)對(duì)六項(xiàng)指標(biāo)包括(質(zhì)地、透明度、顏色、凈度、工藝、重量)進(jìn)行探索性分級(jí),建立初步的評(píng)價(jià)準(zhǔn)則。
[Abstract]:As the most important variety of jade, jadeite has been loved and admired by many people for its rich color, bright luster, fine texture and good toughness. It has now formed a unique and complete industrial chain, culture, design, processing, jadeite. Market supply and demand, brand sales, is regarded as the most collection value, ornamental value and cultural value of one of the jade varieties. As a special jadeite variety, ink jade is different from others because it is dark green in transmitted light and dark green in reflected light. At present, it is only known that its mineral composition is mainly omphacite, but the definition of jadeite in the national standard does not clearly point out whether most (or all) of the aggregates composed of pyroxene minerals can be defined as jadeite. The industry also needs to solve the problem of quality evaluation and its influencing factors. In this paper, on the basis of collecting representative samples of different textures, colors, diaphaneity and cleanliness, and referring to the domestic and foreign achievements, through the routine gemology characteristic test and polarizing microscope observation, using electron probe, infrared spectrum, The basic gemstone properties, mineral composition, structure and spectral characteristics were analyzed by means of UV-Vis spectroscopy and other modern testing techniques. The results show that the color of ink can be blue, yellowish and brownish, opacity is opticity-translucent, the unit transmittance is mostly between 10% and 25%, and there are blocks in the interior. According to the size of the grain, the structure of Indalea can be divided into unequal grain, porphyry, cryptic, fine-grained, etc. According to its morphology, it can have the structure of fiber and columnar, etc. According to the relationship, there can be porphyry metasomatic remnant and veinlike filling structure. The main mineral of the better quality is omphacite, and the poor quality is the hard jade or the green pyroxenite with more jadeite. The macroscopic and microscopic phenomena were observed with the naked eye and microscope, and combined with the data analysis of large scale instruments, the preliminary evaluation criteria were established through the exploratory classification of six indexes (texture, transparency, color, cleanliness, craft and weight).
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P619.28

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本文編號(hào)：1807331