TrekGEO > Mineral Trail > Tohoku region > Miyagi pref. > Amethyst

Japanese page


Mount Ametsuka / Santai Mine

Obara, Shiroishi city, Miyagi pref., Japan

This locality is closed to collecting.

IMA approved name

Quartz var. amethyst

Source for silicon


Length of the upper most crystal: 20 mm. Crystals of amethyst. The prismatic crystal at the top has striations vertical to the prism elongation.

Recovered from an open space of a galena- and argentite-bearing amethyst vein in rhyolite of a low-temperature hydrothermal deposit.

Amethyst from this location was described in 1893.

Other localities


Copyright (c) 2017 NariNari, All Rights Reserved.