Use of the polarizing filter on the refractometer in determinations of the optic sign or optic character of a gemstone
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ชื่อวารสาร : The Journal of gemmology
วันที่เผยแพร่ : 06/2021
สำนักพิมพ์ : Gemmological Association of Great Britain
หมวดหมู่ :
Geology & Gemology
จำนวนหน้า : 11
พร้อมใช้งาน :
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