TrekGEO > Mineral Trail > Kanto region > Gunma pref. > Hausmannite

Japanese page

Hausmannite

Kurokawa Mine

Kurokawa, Hishi village, Kiryu city, Gunma pref., Japan

Source for manganese

Hausmannite

Field of view: 10 mm. Massive hausmannite. The dark brown part at the center is aggregate of fine hausmannite crystals. The massive grayish-green zone around hausmannite is aggregate of fine tephroite crystals. The light gray host is chert. The massive pink parts and the pink veins in chert are aggregate of fine rhodonite crystals.

Recovered from a chert-hosted bedded manganese deposit subjected to Albite-Epidote-hornfels contact metamorphism.

Hausmannite from this location was described in 1962.

Other localities

Copyright (c) 2017 NariNari, All Rights Reserved.