Up for bid is an unusual Water Worn Calcite specimen from a location near Yuha Buttes in Imperial County, California. The Calcite fluoresce Dim Orange under SW, MW and LW UV but is best under MW. These specimens need a strong MW UV source to bring out the fluorescent color. (of course they are great daylight specimens as well!) Pictures were taken with a high intensity Midwave LED Convoy flashlight.

This specimen was collected on October 29, 2022 from a location just north of the border off Dunaway Road exit (I-8). The locality is an ancient sand bar, once underwater, with abundant oyster fossils. A BLM plaque dates the ancient sea to 6 Mya.

This particular specimen was found at the bottom of the sandbar so it is assumed the smooth surface comes from stream tumbling. Other specimens from this location (sold in separate auctions) were collected from the tops of the sand bars, with significant wind exposure. The wind caused groves to be worn in the specimens. These are called Ventifacts.

• Description: Water Worn Calcite (FL Dim Orange SW, MW, LW, Best under MW Convoy LED Flashlight) First picture was taken with MW Convoy LED Flashlight, Second picture under White Light
• Location: Yuha Buttes, , Imperial County, CA, USA
• Size: 3.3" x 1.7" x 0.9"
• Weight: 3.9 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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International Shipping
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