Studies Of Gemological Characteristics And Petrology Characteristics Of Astridite Rock

As a kind of precious jade material, jadeite showed as a later young star in the longhistory of Chinese jade area. It became popular in the Ming and Qing Dynasties andachieved the peak in the terminal period of the Qing Dynasty. The jadeite has won thewidespread affections and attentions with its tough exquisite character, beautifullybright color, and ringing long sound. Not only the value of extremely high appreciationand decoration, the jadeite with high quality but even be more a priceless collection.The jadeite’s collecting will bring economic value, but it also represent the collector’staste and status. The rich merchants and celebrities will always be proud of owning arare jadeite which is rarely found in the world. Accompany with the prosperity of themarket economy, the jadeite has been in thousands of houses. It’s attracting more andmore people to know it, love it and then collect it.This paper focuses on the original mineral jade to chrome as the main mineralcomposition jadeitic jade stone new factory. In this study the jade rock hard chromiumaround the chemical composition, the mineral assemblage, microscopic characteristicsof key research, electronic probe to the chemical composition of the micro analysis;Using scanning electron microscopy energy spectrum analysis on chrome hard rockfeatures in the dark of the jade mineral and around the mineral carries on the surface toscan, determine the characteristics of the change in the composition of the; Using X-raypowder diffraction, the structure of the mineral to recognize.Through these tests to determine the jade hard chromium basic rock, its maincomposition mineral as hard jade, but the content is higher Cr; The secondary mineralshave horns flash stone, feldspar, mica; Deputy mineral have chromite, chromium spinel,unknown including barium minerals (suspected barium feldspar or aluminum bariumsilica). And on chrome hard rock and traditional jadeite jade are compared. Accordingto their gemological properties, including refractive index, color, density, transparency, spectrum etc contrast, show that hard chromium jade rock gemological properties andthe traditional hisui basic similar; They learn to rock properties, including electronicprobe test data, X-ray powder diffraction test map, microstructure characteristics ofcontrast, shows that the main hard chromium jade rock mineral composition, secondarymineral composition, crystal structure and data and traditional emerald basic same.Chromium hard rock and the different jade of the most striking features ofperformance, Fe and Mn in Cr element content, the most obvious change in Cr, fromless than1%to more than60%before, this paper has attached scatter plot chart toillustrate. At the same time Cr, Fe elements in diminishing the expression and they arein the process of the distribution of samples showed obvious different characteristics.Including Ba found in the new factory mineral stone Hhe Long Sein varieties, witha pulse shape crystal grain, in the previous paper no discusses. This sample except themain mineral hard jade outside, also contains Angle flash stone, mica and otherminerals, mineral content of Ba in between22%and35%(SEM data), may and thegeological formation jade later on, needs to be further research.