22pC12 Evidence to Demonstrate the Presence of Seed Crystals in Growth of Natural Diamond Crystals / 22pC12 天然ダイヤモンド結晶成長における種子結晶存在の証拠(成長界面IV)
- Resource Type
- Journal Article
- Authors
- B Fukushima; I. Sunagawa; T Yasuda; 安田 俊一; 砂川 一郎; 福島 秀明
- Source
- 日本結晶成長学会誌 / Journal of the Japanese Association for Crystal Growth. 1999, 26(2):65
- Subject
- Language
- Japanese
- ISSN
- 0385-6275
2187-8366
By means of X-ray topography and cathodeluminescence tomography, three brilliant cut diamonds were investigated. It was demonstrated that the growth of Major part of two brilliants cut from the same rough took place on a seed diamond cuboid formed eleswhere and transported to the growth site. From the Morphological characteristics of the seed, it was argued that the seed was formed in high pressure metamorphic rocks in the subduction zone, and transported into an ultraiafic magma in the Mantle.