| mc PARAPIERROTITE, Tl(Sb,As)5S8, Lookout Pass, Tooele County, Utah, 2 x 2 x 1.2 cm | |
 | A thumbnail sized specimen of a rare Thallium mineral with the formula Tl(Sb,As)5S8. NOTE: THALLIUM IS A HEAVY METAL. TAKE CARE WHEN HANDLING. Parapierrotite is the shiny metallic spots on the specimen. |
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