Stishovite: Thermal Dependence of the Crystal Habit
- 15 May 1964
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 144 (3620), 833-835
- https://doi.org/10.1126/science.144.3620.833
Abstract
The crystal habit of stishovite changes with the temperature of crystallization at a pressure of about 120 kb. Below 600 degrees C it is bipyramidal; between 600 degrees and 900 degrees C it is granular; and above 900 degrees C it is acicular. This temperature dependence of the crystal habit of stishovite may constitute a highpressure geological thermometer which could indicate limiting values for the peak temperatures that prevailed at craters of meteoritic origin in highly siliceous rocks. It suggests that natural acicular stishovite from the rim sandstone at Meteor Crater, Arizona, crystallized at temperatures above 900 degrees C.Keywords
This publication has 9 references indexed in Scilit:
- High-pressure reaction of clinoenstatite to forsterite plus stishoviteJournal of Geophysical Research, 1964
- Observations on the inversion of Stishovite to silica glassJournal of Geophysical Research, 1963
- Relation of Infrared Spectra to Coordination in Quartz and Two High-Pressure Polymorphs of SiO 2Science, 1962
- Synthesis and optical crystallography, of stishovite, a very high pressure polymorph of SiO2Journal of Geophysical Research, 1962
- The upper three-phase region in the system SiO 2 -H 2 OAmerican Journal of Science, 1962
- Stishovite, SiO2, a very high pressure new mineral from Meteor Crater, ArizonaJournal of Geophysical Research, 1962
- The record in the meteorites—IVGeochimica et Cosmochimica Acta, 1961
- First Natural Occurrence of CoesiteScience, 1960
- PRELIMINARY REPORT ON THE SYSTEM SiO2-H2OGSA Bulletin, 1955