Overview

Fluorite forms in the cracks because around 200 million years ago super heated brine water containing the mineral fluorine was forced up from deep within the earth where it came into contact with calcium rich limestone bedrock and squeezed into the cracks where the crystals formed. The idea was to look for cracks in the walls and try to follow them hoping they turn into a rare pocket which in this case is a 1 inch wide crack becomes a 1 foot wide crack. Follow Dave and I on our first wild and fun adventure while mining for natures treasures. .

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9781546909552

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As a little boy Jim Mellos got the rock bug from his uncle, who was a member of the Convair Gem and Mineral Club. He has fond memories of going through boxes of rocks that he had stored under his house, mostly from the same locations that Jim visits today. His interest in gems and minerals was rekindled by a tour of the SDMG Society's building. Jim joined the club and a year later became Field Trip Coordinator. Jim credits several members who had more experience in the field collecting with extending is knowledge. Jim studied Marine Biology and Business Administration as UCSB and USD and was a pitcher on the baseball team for both schools. He has owned and operated several different businesses, all related to the construction field. Currently, Jim is semi-retired and owns a business in Yuma, Arizona.

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