| Based on the wave blue flower jade as the main research object,to wave the rough stone of the blue flower jade and finished the macroscopic observation,classification,conventional gemological testing,microscopic fabric research and some modern testing technology analysis,X-ray powder diffraction analysis,LA-icp-ms analysis,electron microprobe analysis,laser Raman spectroscopy),to reveal wave the mineral composition and structure of the blue flower jade structure features,gemological properties,spectroscopy,and the relevant causes for system analysis.The main results are as follows:1.According to the state of macro output,there are three categories of blue flower jade: point,ribbon and lump;According to the color tone is divided into four categories: light green,dark green,teal and black blue flower emerald.2.In terms of mineral assemblage characteristics,The matrix is dominated by jadeite minerals of Pale green blue flower jade,dark green blue flower jade and black blue flower jade.The black pireflower jade mineral composition matrix is jadeite mineral,pireflower part is omphacite,and tremolite mineral,belongs to the product of tremolite petrification.3.Under the microscope to observe the mineral structure characteristics of granular crystalloblastic structure,columnar crystalloblastic structure and fibrous crystalloblastic structure,black blue flower jade occur metasomatism and tremolite metasomatism.4.X-ray powder diffraction analysis and laser Raman spectrum analysis show that the main minerals of light green,dark green and blue-green flower jade are the same,and the "flower" position is mainly omphacite,and the matrix part is jadeite mineral;Black blue flower jade,"flower" for the location of the omphacite and amphibole minerals.5.Electron probe analysis and La-ICP-MS analysis of chemical components,light green,dark green,blue-green blue flower jade in the matrix part of the main jadeite minerals,pireflower is omphacite,black blue flower jade contains tremolite,it is speculated that pireflower part of the black may be caused by tremolite.With the increase of Mg and Fe elements,the color of blue flower jade becomes blue and dark.Compared with oil green and blue water jade,the Fe content of blue flower jade is much higher than Mg content,while the Mg content of blue flower jade is higher than Fe content.6.Cause analysis according to wave the output state of the blue flower jade,structure features and mineral chemistry,speculation wave the form of the blue flower jade may be associated with the formation of the jadeite metamorphic differentiation,matrix and gone with the wind flowers should be mutually in the same period time caused by different crystallization successively metamorphic crystallization differentiation,forming a first sodium aluminum silicate jadeite mineral matrix,then on the basis of feng magnesium component concentration,and form with iron rich magnesium omphacite class "gone with the wind",to appear in scattered state "gone with the wind" in the jadeite mineral aggregate,rather than the vein puncture,layers of blue flower jade.The specific causes are estimated to be in two aspects:1)Omphacite of blue flower jade: during the formation of jadeite,jadeite minerals were first formed.In the subsequent metamorphism and differentiation,Mg and Fe elements were enriched to form aquamarine minerals dispersed in jadeite minerals,producing blue flower jade.2)Tremolite metasomatism produced by tremolite metamorphism: tremolite was formed by omphacite and was metasomatism by osmotic metasomatism containing aqueous solution in the later stage,resulting in tremolite.On the basis of "tremolite",the black "blue pireflower" appeared.7.Blue flower jade has a special jade cultural meaning,the specific performance of the silk stripe "blue flower" in the dynamic beauty of the lines,the style of the landscape and some of the "pictographic" design of the strange beauty. |
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