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Coffee mug of a rock specimen, the Trancas geode
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Coffee mug of a rock specimen, the Trancas geode
Coffee mug displaying the rock specimen, Trancas geode (a.k.a. Chihuahua geode), from the rock collection of artist J. Mummey. Trancas geodes put on a spectacular show when exposed to short wave UV light. Characterized by their dazzling white drusy crystalline centers, these geodes contain a very small amount of uranium that often fluoresces a brilliant bright-green.
Prized for their drusy quartz interiors, and their distinctive green fluorescence under short wave UV, they are generally small and are approximately 37 million years old. These were formed as gas cavities in volcanic rock that later filled with silica rich fluids, producing quartz and chalcedony.
Start your morning right with one of nature's most beautiful specimens:)
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4.8 out of 5 stars rating22.1K Total Reviews
22,053 Reviews
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5.0 out of 5 stars rating
5 out of 5 stars ratingBy RATNA D.January 14, 2020 • Verified Purchase
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This is a gorgeous mug that makes me feel as though I am outdoors in my Hosta garden, on a beautiful day in Spring! The printing is lovely and sharp just like my painting. I shall be displaying this mug at an exhibition soon!
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5 out of 5 stars ratingBy Cassie C.January 5, 2022 • Verified Purchase
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My sisters and Mom and I love Christmas and the Holiday season in general, so I thought how perfect to be able to personalize one of our fave Holiday movies! They came out beautifully and my sisters and Mom were very touched! See for yourself in my picture attached! 2 out of 4 were Perfect! The printing turned out badly for 2 of 4 and they were also broken in shipping. Zazzle was amazing and shipped out 2 new replacements that were perfect!! So 4 out of 4 were perfect! Excellent customer service!!
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Kathy B.May 31, 2018 • Verified Purchase
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I was thrilled this came out so well. It is a very attractive mug with the colored handle and interior. Being able to personalize it was easy! It was designed for an end of the year thank you gift to the special recipient. perfect. Text lines up perfectly parallel to the top edge of the mug.
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Product ID: 256933079819370746
Created on: 3/29/2026, 5:52 AM
Rating: G