Chrysocolla

Naganobori, Mito village, Mine city, Yamaguchi pref., Japan

Field of view: 30 mm. Chrysocolla associated with limonite. The botryoidal blue group is chrysocolla partly turned white by weathering. The brown basement is a limonite crust.

Recovered from a meteoric oxidation zone of a pneumatolytic deposit combined with skarn formed by contact metamorphism of S-type (ilmenite-series) granite.

Chrysocolla from this location was described in 1909.

Other localities

List of Japanese chrysocolla localities

Naganobori Mine (Pneumatolytic Skarn, Botryoidal)
Chichibu Mine (Hydrothermal Skarn, Massive)
Nakatatsu Mine (Hydrothermal Skarn, Massive)
Kisan-mori Mine (Hydrothermal, Veinlet)