Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan
2023 Annual Meeting
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Host: The Gemmological Society of Japan

Abstracts of Lectures at 2023 Annual Meeting of the Gemmological Society of Japan
Amethyst from Mitsuiwa-mountain in Nanmoku Village, Gunma Prefecture
*Masayuki Kawasaki
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Keywords: Amethyst, Quartz, Nanmoku
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Abstract

Amethyst crystals from Mitsuiwa-moutain, Nanmoku Village were reported. Druses in black clay between limestone and green schist included amethyst, inclusion-bearing quartz and the aggregation of small quartz crystals.

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© 2023 The Gemmological Society of Japan
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