211118_kitagawa-collection-2b_DSC00766_Lr-1_hematite

Hematite from Dayu County, Ganzhou City, Jiangxi Province, China, privte collection, 2021 by Katsuaki Watanabe

赤鉄鉱（中国江西省贛州（かんしゅう）市大余県産、個人蔵）