RELATIONSHIP BETWEEN THE STRUCTURE AND GROWTH-MORPHOLOGY OF TOPAZ [AL2SIO4(F,OH)(2)] USING THE PERIODIC BOND CHAIN METHOD

Authors
NORTHRUP PA REEDER RJ
Citation
Pa. Northrup et Rj. Reeder, RELATIONSHIP BETWEEN THE STRUCTURE AND GROWTH-MORPHOLOGY OF TOPAZ [AL2SIO4(F,OH)(2)] USING THE PERIODIC BOND CHAIN METHOD, Journal of crystal growth, 156(4), 1995, pp. 433-442
Citations number
18
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
156
Issue
4
Year of publication
1995
Pages
433 - 442
Database
ISI
SICI code
0022-0248(1995)156:4<433:RBTSAG>2.0.ZU;2-4
Abstract
A periodic bond chain (PBC) analysis of the topaz [Al2SiO4(F,OH)(2)] s tructure reveals six unique PBCs: [001], [110], [100], [101], [111], a nd [211]. From these, several crystal forms were predicted to be impor tant: {110}, {001}, {011}, {111}, {112}, {120}, {113}, {231}, {010}, a nd {101}. Forms observed in natural crystals agree well with those pre dicted. In addition, surface microtopography, such as striations and p olygonized spiral-growth hillocks, shows linear features that coincide with PBC directions.