Mine to You

Mine to You

A gemstone’s trip from the earth to your hands is often long and complicated.  From the time the stone leaves the earth, many people handle these objects/  This diagram, based on the many years’ experience of Eric Braunwart of Columbia Gem House,...

Millions of Names

The field of igneous petrology – the study of the chemistry and origins of the many igneous rocks around the world – is infamous for the number of names. It is off-putting for students and, frankly, I don’t know of anyone who has an interest in...

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