出典:Wiktionary
出典:『Wiktionary』 (2026/05/31 20:20 UTC 版)
From Tusion + -ite, after the Tusion River Valley in Tajikistan.
出典:Wikipedia
出典:『Wikipedia』 (2011/06/07 02:35 UTC 版)
Tusionite is a rare colorless to transparent to translucent yellow brown trigonal borate mineral with chemical formula: MnSn(BO3)2. The mineral is composed of 18.86% manganese, 40.76% tin, 7.42% boron, and 32.96% oxygen. It is a late stage hydrothermal mineral and occurs rarely in granite pegmatites in miarolitic cavities.