書誌事項
- タイトル別名
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- Origin of Scepter Quartz
- セプター クォーツ ノ セイイン
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Scepter quartz shows a well known and frequently encountered morphology that natural quartz crystals exhibit. It usually consists of hexagonal prismatic trunk and larger but shorter, hexagonal bipyramidal prismatic cap. Crystals with many caps on top and along edges of prismatic trunk, and so-called cathedral quartz also belong to the same category. Modes of occurrence of scepter quartz in a druse, morphology and surface microtopographs, as well as, crystal clarity, distribution of inclusions and perfection are compared between trunk and cap portions of scepter quartz of hydrothermal and pegmatitic origins. It is clarified that the surface of trunk portion is covered and masked due to precipitation of foreign minerals like clay and the growth of trunk portion was interrupted. Then purer hydrothermal solution was introduced from which cap portion of scepter quartz grew epitaxialy on the surface of trunk crystal. Epitaxial lateral overgrowth is concluded as the most reasonable mechanism for the formation of scepter quartz, including cathedral quartz. This conclusion is verified by a series of hydrothermal experiments, using masked seed crystal.
収録刊行物
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- 宝石学会誌
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宝石学会誌 28 (1-4), 15-30, 2008
宝石学会（日本）
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詳細情報 詳細情報について
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- CRID
- 1390282680139150720
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- NII論文ID
- 110006782623
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- NII書誌ID
- AN00226317
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- ISSN
- 21898413
- 03855090
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- NDL書誌ID
- 9504232
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可