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The fluorescent minerals in the specimen are possibly calcite, chalcedony or possibly uranium. The specimen comes from the Yellow Cat area of Utah.

The first image was taken under both long and short wave ultraviolet light. The fluorescing minerals fluoresce white (calcite-long wave UV) and green (chalcedony-short wave UV). Uranium is present in the Yellow Cat area and it fluoresces yellow under both long and short wave ultraviolet lights. Any purple areas are the reflection of the long wave light off the normally light tan to grey non-fluorescing minerals of the specimen.

The long wave ultraviolet photo, below, for this specimen fluoresces white (calcite).

For other images of this mineral, return to the fluorescent section and click the link to view specimen material from Utah. Also check out this specimen in the fossil section under bone. The item number will be the same followed by an "N."

Fossil bone slab
 
Fossil bone slab Quantity in Basket: None
Code: UTB-103
Price: $100.00
Shipping Weight: 2.01 pounds
 
 
Quantity:
 
Location: Yellow Cat area of Utah
Minerals: Possibly calcite, chalcedony, or uranium
Size: 7-1/2" x 5-3/4" x 3/8"



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