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- Chiastolite abstract "Chiastolite is a variety of the mineral andalusite with the chemical composition Al2SiO5. It is noted for distinctive cross-shaped black inclusions of graphite. In areas around Georgetown, California, metamorphosed sediments contained andalusite and chiastolite in a graphite rich metasediment. The chiastolite crystals have been pseudomorphically altered by a mixture of muscovite, paragonite and margarite. The calcium rich margarite tends to form along the graphite rich crosses or bands within the chiastolite. Mineralogically the occurrence is important because all three white mica phases are present in an equilibrium assemblage.There are several theories regarding the formation of the chiastolite cross, however the most widely accepted theory, proposed by Frondel in 1934, suggests that there is a selective attachment of impurities at the rapidly growing corners of andalusite crystals. As the concentration of these impurities (which consist primarily of graphite) increases, the growth of the crystal is slowed. This concentrated impurity deposit forms a re-entrant as it is absorbed by the growth of the andalusite porphyroblast. The cycle of growth-retardation-growth then repeats itself, creating a featherlike pattern of graphite along four radiating 'arms'".
- Chiastolite thumbnail Chiastolith_1.jpg?width=300.
- Chiastolite wikiPageExternalLink min-1001.html.
- Chiastolite wikiPageExternalLink AM64_728.pdf.
- Chiastolite wikiPageID "1816373".
- Chiastolite wikiPageLength "1959".
- Chiastolite wikiPageOutDegree "12".
- Chiastolite wikiPageRevisionID "635818075".
- Chiastolite wikiPageWikiLink Andalusite.
- Chiastolite wikiPageWikiLink Category:Aluminium_minerals.
- Chiastolite wikiPageWikiLink Category:Nesosilicates.
- Chiastolite wikiPageWikiLink Category:Orthorhombic_minerals.
- Chiastolite wikiPageWikiLink Georgetown,_California.
- Chiastolite wikiPageWikiLink Graphite.
- Chiastolite wikiPageWikiLink Margarite.
- Chiastolite wikiPageWikiLink Mineral.
- Chiastolite wikiPageWikiLink Muscovite.
- Chiastolite wikiPageWikiLink Paragonite.
- Chiastolite wikiPageWikiLink Pseudomorph.
- Chiastolite wikiPageWikiLink File:Chiastolith_1.jpg.
- Chiastolite wikiPageWikiLinkText "Chiastolite".
- Chiastolite wikiPageWikiLinkText "chiastolite".
- Chiastolite wikiPageWikiLinkText "chiastolitic".
- Chiastolite hasPhotoCollection Chiastolite.
- Chiastolite wikiPageUsesTemplate Template:Commonscat.
- Chiastolite wikiPageUsesTemplate Template:No_footnotes.
- Chiastolite wikiPageUsesTemplate Template:Reflist.
- Chiastolite wikiPageUsesTemplate Template:Silicate-mineral-stub.
- Chiastolite subject Category:Aluminium_minerals.
- Chiastolite subject Category:Nesosilicates.
- Chiastolite subject Category:Orthorhombic_minerals.
- Chiastolite hypernym Variety.
- Chiastolite type Article.
- Chiastolite type Grape.
- Chiastolite type Article.
- Chiastolite type Nesosilicate.
- Chiastolite comment "Chiastolite is a variety of the mineral andalusite with the chemical composition Al2SiO5. It is noted for distinctive cross-shaped black inclusions of graphite. In areas around Georgetown, California, metamorphosed sediments contained andalusite and chiastolite in a graphite rich metasediment. The chiastolite crystals have been pseudomorphically altered by a mixture of muscovite, paragonite and margarite.".
- Chiastolite label "Chiastolite".
- Chiastolite sameAs کیاستولیت.
- Chiastolite sameAs Hijastolit.
- Chiastolite sameAs Chiastolite.
- Chiastolite sameAs Chiastoliet.
- Chiastolite sameAs Chiastolit.
- Chiastolite sameAs m.05z6s4.
- Chiastolite sameAs Hijastolit.
- Chiastolite sameAs Хіастоліт.
- Chiastolite sameAs Q1283119.
- Chiastolite sameAs Q1283119.
- Chiastolite wasDerivedFrom Chiastolite?oldid=635818075.
- Chiastolite depiction Chiastolith_1.jpg.
- Chiastolite isPrimaryTopicOf Chiastolite.