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Hornblende

Hornblende

(Science: chemical) The common black, or dark green or brown, variety of amphibole. (see Amphibole) It belongs to the aluminous division of the species, and is also characterised by its containing considerable iron. Also used as a general term to include the whole species.

(Science: geology) hornblende schist, a hornblende rock of schistose structure.

Origin: g, fr. Horn horn _ blende blende.


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In the case of the Mt. St. Helen's eruption, the sample submitted was "contaminated" with phenocrysts of orthopyroxene, hornblende and plagioclase. When the erroneous result was realized, it was concluded that these crystals occluded argon within their mineral structures deep ...

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by AstusAleator
Sat Feb 04, 2006 7:52 am
 
Forum: Evolution
Topic: What's bad science? Read here
Replies: 48
Views: 21103

What's bad science? Read here

... of years. In the case of the Mt. St. Helen's eruption, the sample submitted was "contaminated" with phenocrysts of orthopyroxene, hornblende and plagioclase. When the erroneous result was realized, it was concluded that these crystals occluded argon within their mineral structures ...

See entire post
by Springer
Sat Feb 04, 2006 5:41 am
 
Forum: Evolution
Topic: What's bad science? Read here
Replies: 48
Views: 21103


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