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Definition of Simonite
1. Noun. (minerology) A monoclinic-prismatic red mineral containing arsenic, mercury, sulfur, and thallium. ¹
¹ Source: wiktionary.com
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1. Noun. (minerology) A monoclinic-prismatic red mineral containing arsenic, mercury, sulfur, and thallium. ¹
¹ Source: wiktionary.com