All articles in Minerals (ISSN 2075-163X) Vol 13, Issue 12, are now freely available to access, read and download: https://brnw.ch/21wFGXs COVER STORY: At Lightning Ridge, Australia, fine clay buried Cretaceous plant and animal remains, producing morphologically detailed cavities that later became sites for the precipitation of amorphous opal. Opalization occurred after the dissolution of cellulose and lignin in plants, calcium carbonate in mollusk shells, and calcium phosphate in bones. The tim
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All articles in Minerals (ISSN 2075-163X) Vol 13, Issue 12, are now fre…
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