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頑火輝石 目次 性質・特徴 産出地 用途・加工法 脚注 参考文献 関連項目 外部リンク 案内メニューDana ClassificationEnstatiteEnstatite“Nomenclature of pyroxenes”0544-2540JST.JSTAGE/minerj/14.198頑火輝石Orthopyroxene SubgroupPyroxene〔輝石〕グループ頑火輝石この項目を加筆・訂正

輝石グループマグネシウムの化合物直方晶系鉱物


ケイ酸塩鉱物マグネシウム斜方輝石化学組成固溶体単斜晶系単斜頑火輝石火成岩変成岩造岩鉱物岩手県川井村観賞










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頑火輝石




出典: フリー百科事典『ウィキペディア(Wikipedia)』






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頑火輝石 enstatite

頑火輝石
頑火輝石

分類
ケイ酸塩鉱物
シュツルンツ分類
9.DA.05
Dana Classification
65.1.2.1
化学式
Mg2Si2O6
結晶系
斜方晶系
へき開
二方向に完全
モース硬度
5.5
光沢
ガラス光沢

黄緑色、褐色
条痕
淡灰褐色
比重
3.2
文献
[1][2][3]

プロジェクト:鉱物/Portal:地球科学
テンプレートを表示

頑火輝石(がんかきせき、enstatiteエンスタタイト)は、ケイ酸塩鉱物の一種。マグネシウムに富む斜方輝石。




目次





  • 1 性質・特徴


  • 2 産出地


  • 3 用途・加工法


  • 4 脚注


  • 5 参考文献


  • 6 関連項目


  • 7 外部リンク




性質・特徴


化学組成は Mg2Si2O6 で、Mg が Fe2+ に置換した斜方輝石が鉄珪輝石(てつけいきせき、ferrosiliteフェロシライト)。頑火輝石(En)と鉄珪輝石(Fs)とは連続固溶体をつくるため、En50Fs50 を境にする。かつては2種間を古銅輝石(こどうきせき、bronzite) - 紫蘇輝石(しそきせき、hypersthene) - 鉄紫蘇輝石(てつしそきせき、ferrohypersthene) - ユーライトeulite)に分けていたが、現在では使われない。


また、同じ化学組成で単斜晶系のものは、単斜頑火輝石という。



産出地


火成岩や変成岩を構成する造岩鉱物の一つ。



用途・加工法


岩手県川井村道又では、放射状の結晶集合が産し、観賞用に採掘された。



脚注


[ヘルプ]


  1. ^ 「おもな鉱物」『理科年表 平成20年』国立天文台編、丸善、2007年、645頁。.mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    ISBN 978-4-621-07902-7。



  2. ^ Enstatite, MinDat.org, http://www.mindat.org/show.php?id=1384 2012年6月16日閲覧。  (英語)


  3. ^ Enstatite, WebMineral.com, http://webmineral.com/data/Enstatite.shtml 2012年6月16日閲覧。  (英語)



参考文献


  • 黒田吉益、諏訪兼位『偏光顕微鏡と岩石鉱物 第2版』共立出版、1983年、138-140頁。
    ISBN 4-320-04578-5。


  • N. Morimoto (1989). “Nomenclature of pyroxenes” (PDF). Mineralogical Journal (The Mineralogical Society of Japan) 14 (5): 198-221. doi:10.2465/minerj.14.198.
    ISSN 0544-2540. JOI:JST.JSTAGE/minerj/14.198. https://doi.org/10.2465/minerj.14.198.
     

  • 森本信男「7 輝石族」『造岩鉱物学』東京大学出版会、1989年、110-145頁。
    ISBN 4-13-062123-8。

  • 松原聰『日本の鉱物』学習研究社〈フィールドベスト図鑑〉、2003年、194頁。
    ISBN 4-05-402013-5。

  • 青木正博『鉱物分類図鑑 : 見分けるポイントがわかる』誠文堂新光社、2011年、150頁。
    ISBN 978-4-416-21104-5。


関連項目





  • 鉱物 - ケイ酸塩鉱物 - 輝石

  • 鉱物の一覧

  • 造岩鉱物

  • 讃岐岩


外部リンク



  • Orthopyroxene Subgroup, MinDat.org, http://www.mindat.org/show.php?id=10967 2012年6月16日閲覧。  (英語)

  • 福岡正人. “Pyroxene〔輝石〕グループ”. 地球資源論研究室. 広島大学大学院総合科学研究科. 2012年6月16日閲覧。

  • “頑火輝石”. 地質標本館. 産業技術総合研究所地質調査総合センター. 2012年6月16日閲覧。






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