Charoite

Who likes purple minerals? It seems just about everyone likes purple minerals and there will be a few choice ones at the Wayne Country Gem and Mineral Club auction on February 14th.   Yes, the auction this year is on Valentine’s Day.  Someone is going to go home with a brilliant amethyst piece, but you will have to come to the auction to see how purple it is and whether it is from Brazil or Uruguay.  There might also be lepidolite or bismuth or fluorite or other purple goodies.

But this note is going to focus on another purple favorite.  Almost every month someone arrives at the workshop with a small slice of purple charoite.  The color captures the eye first, but the mesmerizing swirling pattern of the bands of charoite is irresistible if not a bit hypnotic.

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My Backyard Sand

About 12,000 years ago, pro-glacial Lake Iroquois occupied all of the current Lake Ontario and extended significantly south and east into New York.  The glacial ice was retreating but had not yet melted far enough north to expose the St. Lawrence Seaway, forcing the significantly larger Lake Iroquois to drain east through the Mohawk Valley and then south along the Hudson River.  All of Rochester, NY was beneath this lake.

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