10044 - Ilmenite basalt
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Fact sheet
Description: 

10044 is a grey-white, medium- to coarse-grained ilmenite basalt that some authors have described as a microgabbro. Crystallisation age of the sample is 3.7 billion years. Its weigh is 248 grams. Mineralogically, 10044 consists of anhedral phenocrysts of pyroxene in a partially enclosing matrix of plagioclase feldspar and ilmenite. The pyroxene composition is variable with core to rim zoning from augite to the rare species pyroxferroite - a mineral first discovered in Apollo samples. Interstitial areas of the sample are filled with anhedral cristobalite, troilite containing iron blebs, K-rich glass and irregular-shaped vugs up to 0.3 mm. Accessory amounts of ulvospinel, apatite and an un-named Y-Zr mineral are also reported (tranquillityite?). The flowery growths around the sample (particularly visible in XPL) are artefacts caused by the interaction of solvent with the embedding resin.

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

In Place
In Time
Accuracy:
Location precision: 
Good
Timescale:
Not known
Ma = Millions of years ago
In Focus
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Type:
Type: 
igneous
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