Motukoreaite. Source: https://upload.wikimedia.org/wikipedia/commons/5/52/Motukoreaite-Phillipsite-91264.jpg
Motukoreaite-Phillipsite-91264
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A Blog About Stone Gathering, Tumbling and Polishing, and Rocks and Landscapes, from New Zealand – With Musical Interludes (john.tumblestone@gmail.com)
