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Condensation Experiments of Mg-Silicate Minerals

Published online by Cambridge University Press:  12 April 2016

A. Tsuchiyama
A. Tsuchiyama*
Affiliation:
Institute of Earth and Planetary Sciences College of General Education Osaka UniversityToyonaka 560Japan

Abstract

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Condensation experiments were performed in the simple but most fundamental system Mg-Si-O-H with forsterite vaporization source. At temperatures above about 1000°C, euhedral crystals of forsterite (Mg2SiO4) of a few μm were formed. These crystals are similar to olivines in Allende matrix. At temperatures below about 1000°C, whiskers of forsterite and enstatite (MgSiO3) were formed by vapor-liquid-solid growth mechanism. These whiskers are different from enstatite whiskers in interplanetary dust, which were probably formed at small super coolings.

Type
Interplanetary Dust: Physical and Chemical Analysis
Information
International Astronomical Union Colloquium , Volume 126: Origin and Evolution of Interplanetary Dust , 1991 , pp. 83 - 86
Copyright
Copyright © Kluwer 1991

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