Eclogite (high pressure origin, with tectonic introduction from upper mantle depths) pod enclosed within amphibolite-facies gneisses.
Two-distinct generations of amphibole are recognized :
- Early amphibole co-existing with garnet and clinopyroxene (hydrous-eclogite-facies),
- Later symplectitic amphibole co-existing with plagioclase formed by retrogressive amphibolitization.
Associated with the eclogite pod are a quartz vein formed by pyroxene carbonation and a barroisite pegmatite.
References
- Carpenter, M. A. and Smith, D. C. (1981): Solid solution
and cation ordering limits in high temperature sodic logical pyroxenes from the Nybo eclogite pod, Norway. Mineralogical Magazine. 44: 37-44.
- Ungaretti, L., Smith, D.C. & Rossi,G. (1981): Crystal-chemistry by x-ray structure refinement and electron microprobe analysis of a series of sodic-calcic to alkali-amphiboles from the Nybö eclogite pod, Norway. Bulletin Société Française de Minéralogie et de Cristallographie. 104 :400–412
Mineral List
11 entries listed. 8 valid minerals. 2 type localities (valid minerals).
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please
register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Mineral and Locality Search
