50.3 and 4.0 grams. Aubrite
TKW 17 kg. Observed fall 9 April 1919 in Kentucky, USA.
  
jnmczurich writes:
Aubrites, also called enstatite achondrites, are highly reduced, differentiated meteorites from an aubrite parent body that have experienced a significant collision history.
Cumberland Falls is classified as a rare type polymict breccia in the aubrite group. Cumberland Falls contains chondritic, dark, sometimes black inclusions that probably originate from ordinary chondrites (OC), impacted on the aubrite parent body or collided with the aubrite parent body.
The shown Cumberland Falls corner section with cut faces (50.3 grams, collector trade: 1994) doesnt have dark chondritic inclusions, but shows severely shocked enstatite crystals, shock veins, pretty nice shock plains and on its outer faces are cream colored patches of crust to see.
The smaller fragment slice (4.0 grams, dealer trade: 1999), however, shows some very dark inclusions that could be of chondritic origin. Shock veins also run through the small and lovely polished fragment slice.
Pic 1 to 3 both CF samples shown in different position
Pic 4 cream colored, light brown colored patch of crust
Pic 5 close view, 6 x 8 mm, severely shocked enstatite crystal
Pic 6 close view, 6 x 8 mm, distinct brecciated area
Pic 7 close view, 6 x 8 mm, metallic inclusion of 3.5 mm
Pic 8 close view, 6 x 8 mm, shock plain, see also Pic 3, upper part of the larger CF piece
Pic 9 to 10 thin section no. 1. The colorful blue and brown crystals are enstatite
Pic 11 to 12 thin section no. 2. The colorful blue and brown crystals are enstatite
Thin section pictures were taken with the use of cross-polarized filter.
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