北海道虻田鉱山のクリストバル石
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- 浦島 幸世
- 北海道大学理学部地質学鉱物学教室
書誌事項
- タイトル別名
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- Cristobalite from the Abuta Mine in Hokkaido, Japan
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説明
Cristobalite and opal are contained in the wall-rocks (tuff and agglomerate) of the native sulphur and iron sulphides ore deposits, and in the disseminated limonite (goethite) ore of the Abuta Mine in south-western Hokkaido, Japan.<BR>These are not found in the massive iron sulphides ore and moss-limonite (goethite) ore that always contains quartz as silica minerals. The x-ray diffraction data show that the cristobalite is mostly α-(low) type. Its hexagonal platy crystal can be found in the electromicrograph.<BR>It is considered that the cristobalite has been formed as a secondary mineral from opal which is one of the hydrothermal alteration minerals-alunite, kaolin, montmorillonite, anatase?, pyrite, marcasite, native sulphur, etc. Cristobalite is also found in the wall-rocks of the native sulphur ore deposits of the Tokusyumbetu Mine and in the clay under the moss-limonite (goethite) ore deposit of the Kuttyan Mine.
収録刊行物
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- 鉱物学雜誌
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鉱物学雜誌 3 (6), 738-746_1, 1958
一般社団法人 日本鉱物科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206525389184
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- NII論文ID
- 130003437064
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- ISSN
- 18837018
- 04541146
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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
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- 抄録ライセンスフラグ
- 使用不可
