Up for bid is a naturally rounded beach rock from an unnamed beach in San Mateo county in Northern California. This has two types of Calcite. One type fluoresces Yellow under all UV wavelengths and the other type fluoresces Red under MW. You need a high intensity Mid Wave LED flashlight to really appreciate this specimen. First picture is under Mid Wave LED Flashlight. Second picture is under MW Bulb type lamp. Their pictures is under SW UV. Fourth picture is under White light.

Description: Calcite (FL Red MW, Yellow SW, MW, LW)
Location: Beach in Northern California, , San Mateo county, CA, USA
Size: 4.2" x 2.7" x 1.4"
Weight: 10 oz

Contact me if you have any questions. Be sure to check out my eBay store: Jim's Obscure Stuff for more fluorescent minerals and other unusual items.

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JH28174 Fluorescent Calcite Beach Rock, San Mateo, CA