The Morphology of Hydrothermally Grown Plagioclase | Zendy

Franke W. | Zendy; Ghobarkar H. | Zendy

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The Morphology of Hydrothermally Grown Plagioclase

Author(s) -

Franke W.,

Ghobarkar H.

Publication year - 1982

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170170410

Subject(s) - anorthite , plagioclase , hydrothermal circulation , crystal habit , morphology (biology) , mineralogy , lath , crystallography , materials science , habit , chemistry , geology , microstructure , metallurgy , crystallization , psychology , paleontology , quartz , organic chemistry , seismology , psychotherapist , martensite

Plagioclase crystals Ab 20 An 00 and nearly pure anorthite were grown on the surface of artificial melts by hydrothermal treatment at 2 kb. The average crystal size was 0.002 to 0.008 mm. In the temperature range of 400° to 600°C a pseudohexagonal habit was observed for anorthite while a lath‐like habit due to the prevalence of {010} was found for the Ab 20 An 80 composition. Dominating faces are {010} {130} {110} {100} {110} {130} in the zone [001] and {021} {111} {111} {021} {111} {111} together with {001}.

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