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Microscopic vesuvianite identification method

A technique of microscopic identification and Fushan stone, which is applied in the preparation of test samples, Raman scattering, material excitation analysis, etc., can solve the problems that the in-situ micro-area analysis of beryllium minerals cannot be realized, and avoid the sample pretreatment process, Effective and wide-ranging effects

Inactive Publication Date: 2019-06-07
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to solve the defect that the in-situ micro-area analysis of beryllium minerals cannot be realized in the existing electron probe analysis technology, and to provide a microscopic identification method for Fushan stone

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 Shown, a kind of microscopic appraisal method of fushan stone, this method comprises the following steps:

[0024] Step 1: Collect ore samples; field investigation, systematically collect beryllium ore samples, the size of the samples is 3×6×9cm, and the samples are 5 pieces.

[0025] Step 2: Make optical thin sections and identify rocks and minerals on the collected mineral samples;

[0026] Slice the collected ore samples and make 0.3mm light slices, observe the beryllium mineral composition of the ore on a microscope, and circle the positions that may be beryllium minerals for the next step of laser Raman spectroscopy analysis.

[0027] Step 3: Carry out laser Raman spectroscopy analysis on the Fushan stone in situ;

[0028] Set up the microlaser Raman spectrometer used for laser Raman analysis, the wavelength is ...

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Abstract

The invention relates to a microscopic vesuvianite identification method, and belongs to the technical field of jewel and beryllium ore identification. The method comprises the following steps that 1)an ore sample is collected; 2) the ore sample is made into light slices, and rock-mineral determination is carried out on the sample; 3) laser Raman spectrum analysis is carried out in-situ vesuvianite; and 4) data is processed, and a Raman spectra is compared to identify the vesuvianite accurately. Effects of advanced technical means of the laser Raman spectra in analyzing beryllium ore are usedfully, the vesuvianite can be decomposed from a complex mineral symbiosis combination, and the method has the advantages including being in-situ, real-time economic, simple in operation, short is determination time and high in sensitivity.

Description

technical field [0001] The invention belongs to the technical field of identification of gemstones and beryllium ore, and in particular relates to an identification method of Fushan stone. Background technique [0002] Fushan stone, an island structure silicate mineral, was first discovered in Vesuvius volcano in Italy, so it is also called Vesuvius stone. Its color is mostly green, but also brown, yellow, blue and purple. The beautiful and transparent fushan stone can be used as gemstones, and it is produced in Pakistan, Norway, the United States and other places. There are several varieties: the green and yellow-green dense block-shaped Fushan stone produced in California, the United States, is called California jade; the rare blue green Fushan stone is distributed in Norway; the green boron Fushan stone is distributed in the former Soviet Union. Others include Austria, Canada, Italy, Kyrgyzstan and Switzerland, as well as Handan, Hebei, China. In addition, beryllium-co...

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Application Information

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IPC IPC(8): G01N21/65G01N1/28
CPCG01N21/87G01N21/65
Inventor 陈金勇范洪海孙远强王生云何升
Owner BEIJING RES INST OF URANIUM GEOLOGY
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