Merrillite, a whitlockite-group mineral in Yamato-75 chondrites

• Main Authors: Yasunori Miura, Yukio Matsumoto
• Format: Report
• Language: English
• Published: Department of Mineralogical Sciences and Geology, Faculty of Science, Yamaguchi University 1982
• Subjects: Yamato; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1383; http://id.nii.ac.jp/1291/00001383/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1383&item_no=1&attribute_id=18&file_no=1

Various sizes of merrillite of whitlockite-group minerals (from 20 to 750μm in length) occur as irregularly-shaped grains in Yamato-75 chondrites. The merrillite in the Yamato-75135,93 chondrite coexists with olivine, pyroxene, plagioclase, chromite and/or metal phases in the matrix. This calcium ma...