72705 (4) Impact Melt Breccia
 >View Microscope
Fact sheet
Description: 

72705 is a vesicular impact melt containing two conspicuous white clasts, one of which is a cataclasized troctolitic anorthosite with flame-textured plagioclase. The glass is highly dust-coated. It is subangular and coherent, with a few non-penetrative fractures and small vugs. Matrix material appears to be a devitrified glass, estimated to be 90% of the sample; the remainder appear as white plagioclase clasts. A flame-textured plagioclase clast and a spherical gas cavity are shown in rotation 2. 

The sample weighed 2.39 grams before analysis and has not been dated.

Further details of this and other Apollo samples are here: http://curator.jsc.nasa.gov/lunar/

In Place
In Time
Accuracy:
Timescale:
Not known
Ma = Millions of years ago
In Focus
Collection:
What\
Type:
Type: 
metamorphic
What\
Rock-forming minerals:

Rock forming mineral:

What\