Structure and properties of quartz crystals grown from fluoride solutions: I. The morphology of basal pinacoid habit

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Crystallography Reports

DOI:https://doi.org/10.1134/S106377450805026X· OSTI ID:22050921

Mazitov, R M ^[1]

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1. Russian Academy of Sciences, Institute of Physics of Molecules and Crystals, Ufa Research Center (Russian Federation)

The mechanism of growth of quartz crystals from fluoride media has been investigated. It is shown by different independent methods (selective etching, X-ray diffraction analysis, optical microscopy) that the faceted forms of autonomous growth regions (trigonal pyramids formed on nonsingular crystal faces) are unstable and degenerate during growth. This degeneracy is accompanied by torsion deformation of autonomous growth regions and, as a result, formation of a series of hollow helical channels at boundaries of autonomous growth regions, whose axes make an angle of {approx}16{sup o} with the OZ axis, and their projections on the XOY plane are directed along the +X axes.

• OSTI ID: 22050921
• Journal Information: Crystallography Reports, Vol. 53, Issue 5; Other Information: Copyright (c) 2008 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL GROWTH
CRYSTALS
DEFORMATION
ETCHING
FLUORIDES
MORPHOLOGY
OPTICAL MICROSCOPY
QUARTZ
SOLUTIONS
SURFACES
TORSION
X-RAY DIFFRACTION