Cosmic Connection Meteorites

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NWA 8662 35.6 gram Eucrite Monomict Breccia Main Mass

485.00
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NWA 8662 35.6 gram Eucrite Monomict Breccia Main Mass

485.00

 

Writeup from MB 104: 

Northwest Africa 8662 (NWA 8662)

(Northwest Africa)

Purchased: Oct 2014

Classification: HED achondrite (Eucrite)

Petrography: (P. Warren, UCLA) This eucrite shows a mildly brecciated version of typical medium-subophitic eucrite texture, including thoroughly exsolved pyroxenes. Minor Fe-metal.

Geochemistry: Low-Ca pyroxene En36.1±0.8Wo2.2±0.3, FeO/MnO wt ratio 30.1±1.2, n=8; high-Ca pyroxene En29.5±0.4Wo43.3±0.5, n=7; plagioclase An84.8±4.6, n=21.

Classification: Eucrite (monomict breccia).

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:Morocco

Date:P Oct 2014

Mass (g):46.5

Pieces:1

Class:Eucrite

Shock stage:moderate

Weathering grade:moderate

Ferrosilite (mol%):61.7

Wollastonite (mol%):2.2

Classifier:P. Warren, UCLA

Type spec mass (g):10.7

Type spec location:UCLA

Main mass:Larry Atkins

Comments:Submitted by P. Warren

Institutions
   and collectionsUCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)

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Writeup from MB 104: 

Northwest Africa 8662 (NWA 8662)

(Northwest Africa)

Purchased: Oct 2014

Classification: HED achondrite (Eucrite)

Petrography: (P. Warren, UCLA) This eucrite shows a mildly brecciated version of typical medium-subophitic eucrite texture, including thoroughly exsolved pyroxenes. Minor Fe-metal.

Geochemistry: Low-Ca pyroxene En36.1±0.8Wo2.2±0.3, FeO/MnO wt ratio 30.1±1.2, n=8; high-Ca pyroxene En29.5±0.4Wo43.3±0.5, n=7; plagioclase An84.8±4.6, n=21.

Classification: Eucrite (monomict breccia).

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:Morocco

Date:P Oct 2014

Mass (g):46.5

Pieces:1

Class:Eucrite

Shock stage:moderate

Weathering grade:moderate

Ferrosilite (mol%):61.7

Wollastonite (mol%):2.2

Classifier:P. Warren, UCLA

Type spec mass (g):10.7

Type spec location:UCLA

Main mass:Larry Atkins

Comments:Submitted by P. Warren

Institutions
   and collectionsUCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)