May 2017

The Moon In My Hand

Over the course of my life, I have cut thousands of rocks on diamond saws. Most of the rocks the last twenty years have been meteorites. But until yesterday I had never cut a lunar meteorite. There has been a significant amount of meteorite from The Moon recovered recently, Paul and I decided that we would get a large piece

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NWA 2824 Diogenite

Ted Bunch and other researchers have described many shock induced features in this odd diogenite. We found some to photograph in a few thin sections, all viewed in cross-polarized light. Brecciation is a common result of shock. The clasts in this polymict breccia have a variety of textures. Mechanical twinning, also called shock twinning, is apparent in numerous mineral grains.

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An odd class of tektites that formed inside bubble chambers

When it is time for a new edition, I search through our collection and inventory looking for a stone or group of similar stones with a good story to tell. Over our years of sorting through crates of tektites till our fingers were raw, we have always selected out the unusual or unique or interesting or somehow special pieces. When

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