valentinite

noun

val·​en·​ti·​nite

ˈvalən‧ˌtēˌnī+

plural -s

: a mineral Sb₂O₃ consisting of antimony oxide in orthorhombic crystals polymorphous with senarmontite

Word History

Etymology

German valentinit, from Basil Valentine, 15th century German alchemist + German -it -ite

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