anorthosite - gray/white anorthosite similar to the specimens brought back from the moon by the Apollo astronauts - hand/display specimen
This igneous rock resembles granite but lacks quartz, hornblende, or mica, instead consisting mainly of andesine feldspar. It was formed about 1.2 billion years ago and can vary in color.
- The description claims that anorthosite can vary widely in color.
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