Enstatit Källor | Navigeringsmeny”Arkiverade kopian”originalet
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Enstatit
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| Enstatit | |
 Enstatite från Tilly Foster gruvan, New York, USA. | |
| Kategori | Mineral |
|---|---|
| Grupp | pyroxengruppen |
| Kemisk formel | Mg2Si2O6 [1][2] |
| Färg | vit,grå,grön eller brun |
| Kristallsystem | Ortorombiskt |
| Spaltning | God |
| Brott | ojämnt |
| Hårdhet (Mohs) | 6 |
| Glans | glas- eller halvmetallisk glans |
| Streckfärg | vitt eller ljusgrått |
| Densitet | 3,5-3,6 |
| Referenser | [1][2] |
Enstatit är ett bergartsbildande mineral som är en ortopyroxen. Den är vit, grå, grön eller brun och förekommer som fibrösa massor eller prismatiska kristaller.[1] Man kan mycket ofta hitta den i basiska och ultrabasiska magmatiska bergarter, men man kan också hitta den i granuliter och en del andra högmetamorfa bergarter.[2][1] En form av enstatit kallas bronzit.[1]
Källor |
- ^ [a b c d e] Price, Monica; Walsh, Kevin (2005). Bergarter och mineral. Bonniers Naturguider. Översatt av Erik Jonsson. Stockholm: Albert Bonniers Förlag. sid. 162, 70 (och 7). ISBN 91-0-010458-2 Originalets titel: Rocks and Minerals (Doring Kindersley Ltd).
- ^ [a b c] Terminologicentrum TNC: Geologisk ordlista/1988 (”Arkiverade kopian”. Arkiverad från originalet den 2 december 2013. https://web.archive.org/web/20131202232735/http://www.rikstermbanken.se/rtb/visaTermpost.html?id=192490. Läst 25 november 2013. )
Kategori:
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