The SkyRock Cafe Welcome, Guest. Please Login or Register
 

Welcome to the SkyRock Cafe!!!!!
  Home Illinois Meteorites SearchLoginRegisterPM to adminHelp  
 
 
Page Index Toggle Pages: 1
Send Topic Print
(Read 87 times)
wandering star
SkyRock God
********
Offline

Skyrock meteorite vendor

Posts: 1485
The Darkside of The Moon
Gender: male
Zodiac sign: Zodiac sign: Virgo
NWA 6291 - Angrite
07/21/10 at 16:06:12
Alert Board Moderator about this Post! 
"The King of Angrites"

NWA 6291 (paired with NWA 2999)
Classification - Angrite
TKW - 235g complete stone (prior to cutting)

...

...

...

...

...

Back to top
 
WWW http://www.facebook.com/WanderingStarMeteorites <a+href=  
IP Logged
 
wandering star
SkyRock God
********
Offline

Skyrock meteorite vendor

Posts: 1485
The Darkside of The Moon
Gender: male
Zodiac sign: Zodiac sign: Virgo
Re: NWA 6291 - Angrite
Reply #1 - 08/24/10 at 10:06:04
Alert Board Moderator about this Post! 
Here is the write up for NWA 6291

NWA 6291 Achondrite (angrite, metal-rich)

Annealed breccia composed of Al-Ti-diopside (Fs10.8+/-0.05Wo53.0+/-0.05, FeO/MnO = 114, Al2O3 = 7.7-7.9 wt.%, TiO2 = 1.3 wt.%), calcic olivine (Fa40.9+/-0.05, FeO/MnO = 94-95, CaO = 1.3-1.5 wt.%), pure anorthite, Cr pleonaste spinel, altered kamacite (~8 vol.%) and troilite.  Anorthite occurs as large (up to 3 mm) angular clasts and also as thin coronas around spinel grains.  Secondary terrestrial weathering products include iron hyroxides (in veinlets) and minor calcite.
Back to top
 
WWW http://www.facebook.com/WanderingStarMeteorites <a+href=  
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print
The SkyRock Cafe was founded by Joe Kerchner and is run by Joe and his amazing Moderators, A BIG Thanks to Ralph, Johnno, and Thomas "a.k.a. YabbHelp" for all of their devotion and hard work to The SkyRock Cafe. The SkyRock Exists only because of the great member base we have, A BIG Thanks to all SkyRockers!!!!!!