2016年ジュエリー・ドローイング・アワード応募作品

Gaylussite is a rare mineral mostly used industrially, as it gets cloudy from dehydrating easily. Discover the history, properties, uses, and traits of gaylussite in this complete guide.

Chiolite is a rare, colorless to white mineral related to cryolite. Gems are very rare, only from a couple sources. Discover the uses, history, prices, and traits of chiolite here.

ブライトハウプタイトは、ニッケル鉱に関連する銅赤色から紫色のアンチモン鉱物で、金属光沢と銀鉱石との関連性で知られています。ブライトハウプタイトの歴史、特徴、価値、そして用途について学びましょう！

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