ヘリカル、リボン、ロープ状角閃石ひげ結晶と石英の霜柱(結晶成長基礎)

抄録

Amphibole whisker bundles showing unusual topological morphology like helical, ribbon, curl, coil and rope forms and quartz fibrous seam resembling frost column were found for the first time in the mineral kingdom, on short prismatic hedenbergite single crystals in a druse of a skarn sample. Both amphibole whiskers and quartz frost column were formed by VLS mechanism, through reaction between hedenbergite and newly introduced vapor phase containing S and H_2O.