ourayite
plural of arteriolopathy
(mineralogy) An orthorhombic-dipyramidal gray mineral containing bismuth, lead, silver, and sulfur.
plural of courtisanerie
An embellishment.
野外の地質学者は、古い鉱山から採取されたビスマス、鉛、銀、硫黄を含む直方双錐晶系の灰色鉱物が付着した標本を注意深く調べた。
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