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Is this Blue Lace Agate or something else?

R

rockby

New member
This rock has been in storage for over 40 years. I tried to do some research. It looked similar to blue lace agate? As you can see, it has a shade of light blue in it, but when you hold a light to it ( a regular white household light bulb), it changes to an amber color. It's translucent from the center going to the outer edges. I would appreciate any thoughts about it, and if anyone know what kind of rock it is. Also, it's at least 8" X 8" X 2". Thank you!
 

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First off you would be better served if you move this to the Rock and Mineral Forum. Second, what is the light source for the blue? And exactly what bulb are you using that turns it yellow? Some minerals will change color depending on light source but this is a mystery to me so far.
 
Hi and thank you for the response! I'm new to this website, so will have to figure out how to move this to the proper rock and mineral forum. The lighting was just a regular 60v household lamp light bulb. I will try some different lighting sources, and see the results. It is a mystery. Thank you for taking the time and have a great day!
 
Just tested it in different light. With direct sunlight, the color turned yellow. With a different flashlight with white light, the blue disappears and turns light yellow as well. Still a mystery.
 
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