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Tag: chalcedony

Guest Video: How to Carve A Gem

May 29, 2018 BJ Deming

Here is more information on carnelian, which is very close to chalcedony. Featured image: Source, public domain. (Thank you, Metropolitan Museum of Art and Wikipedia!)

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A good resource list when a volcano eruption makes headlines.

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BJ Deming

BJ Deming

After getting an associate's degree in forestry, I studied geology in the 1980s but went into another field instead. The Internet renewed my interest in geoscience as a hobby. So, when some free time opened up after I retired, I decided to write a book about cat evolution. That has turned into a series and started a new career! Currently, I'm working on the next book in the series: a quick overview of the whole cat family. That is, the cats we know today. After that, come the sabertooths!

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