The largest pearl ever known was found in the Philippines in 1934 and is known as the Pearl of Lao Tzu. It is a naturally-occurring, non-nacreous, calcareous concretion (pearl) from a giant clam

The largest pearl ever known was found in the Philippines in 1934 and is known as the Pearl of Lao Tzu. It is a naturally-occurring, non-nacreous, calcareous concretion (pearl) from a giant clam

Abstract Zigged and Zagged in Yellow and Green by Mary Sedivy. We each have a unique perspective on life. This young "purple" coneflower bud has not learned how to say "NO" yet. Its life could blossom into anything and any color it could imagine.

Abstract Zigged and Zagged in Yellow and Green by Mary Sedivy. We each have a unique perspective on life. This young "purple" coneflower bud has not learned how to say "NO" yet. Its life could blossom into anything and any color it could imagine.

Opal Group. Foto. Opal has been a popular gem for many centuries and has a very interesting structure. (...)

Opal Group. Foto. Opal has been a popular gem for many centuries and has a very interesting structure. (...)

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