Authors: Kawasaki, Masayuki; Nagase, Toshiro; Onuma, Kazuo; Katsumata, Tooru; Sunagawa, Ichiro

Source: European Journal of Mineralogy, Volume 18, Number 2, March 2006 , pp. 273-278(6)

Publisher: E. Schweizerbart'sche Verlagsbuchhandlung

Abstract:

The surface microtopography of rough basal faces and internal inhomogeneities of amethyst crystals from Four Peaks, Arizona were investigated by means of optical, scanning electron microscopes and cathodoluminescence tomography. Rough interface overgrowth was shown to have taken place along the c-axis on mechanically broken surfaces and the present rough basal surfaces were demonstrated to have formed because of later heavy dissolution.

Keywords: CRYSTAL MORPHOLOGY; ROUGH (0001) FACE; NATURAL AMETHYST; GROWTH HISTORY; DISSOLUTION

Document Type: Research article

DOI: http://dx.doi.org/10.1127/0935-1221/2006/0018-0273

Publication date: 2006-03-01

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