15648 (5) Shocked Basalt
 >View Microscope
Fact sheet
Description: 

This small basalt sample is brecciated and partially shock-melted and was collected in a large rake sample. It is a member of the olivine-normative clan of Apollo 15 basalts. 15648 consists of crushed mineral debris surrounded by dark-brown glassy mesostasis. Remnants of the original microgabbroic texture are present. Plagioclase has not been maskelytenized. Opaque phases include chromite, ulvospinel, ilmenite, metallic iron and troilite. Mg-rich olivine phenocrysts are fractured. Fayalite is present in the groundmass.

The sample weighed 9.1 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: 
igneous
What\
Rock-forming minerals:

Rock forming mineral:

What\
Accessory minerals:

Accessory minerals:

What\