Shima mine, Nakanojou, Agatsuma District, Gunma Prefecture, Japan

Bluish-gray to black acicular crystals form radiating clusters, and the aggregates exhibit silky luster.

© NaturalismMinerals///天物矿晶

Pale bluish-gray acicular crystals form radiating clusters, with the aggregates exhibiting a silky luster. 日本 群馬県 吾妻郡 中之条町 四万(蝋石)鉱山 Shima(Pyrophyllite) Mine, Nakanojou, Agatsuma, Gunma, Japan. The Shima Mine is a pyrophyllite-zone acidic metasomatic metamorphic deposit that was only explored and mined on ...

© NaturalismMinerals///天物矿晶

Bluish-gray to black acicular crystals form radiating clusters, and the aggregates exhibit silky luster.

© NaturalismMinerals///天物矿晶