70315 (26) Ilmenite Basalt
 >View Microscope
Fact sheet
Description: 

70315 is a coarse-grained, vesicular basalt. Large pyroxene grains poikilitically enclose plagioclase feldspar and ilmenite. The pyroxene is particularly notable for its compositional zoning and wavy extinction (rotation 1). Olivine and cristobalite (see rotation 2) are present in low abundance. Our thin section is slightly thick.

The sample weighed 148.6 grams before analysis and has not been dated, although Apollo 17 mare basalts are generally considered to be 3.72±0.04 billion years old.

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\