Neotocite

Odaira, Tono village, Iwaki city, Fukushima pref., Japan

Field of view: 30 mm. Neotocite associated with rhodonite. The brown part with a vitreous luster at the left is aggregate of fine neotocite crystals. The pink part at the right is aggregate of fine rhodonite crystals.

Recovered from a bedded manganese deposit subjected to Epidote-Amphibolite facies regional metamorphism and contact metamorphism by granite.

Neotocite from this location was described in 1969 as Penwithite.

Other localities

List of Japanese neotocite localities

Kurokawa Mine (Mn skarn, Massive)
Taguchi Mine (Bedded Mn, AM facies)
Gozaisho Mine (Bedded Mn, EA facies)