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Straight, acicular, colorless solid inclusions in demantoid garnet from the Ural Mountains of Russia were investigated by laser Raman microspectrometry. These “needles,” which occur in association ...
ペリドット、スピネル、サードニックスが8月の3つの誕生石です。ペリドットの誕生石は、苛酷な条件の下で形成されることで知られています。地球のマントルの奥深くから溶岩とともに ...
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