Colemanite with Todorokite
Colemanite is hydrous calcium borate. Todorokite is a rare complex hydrous manganese oxide mineral that commonly includes minor substitution of sodium, calcium, potassium, aluminum or magnesium. Colemanite is fluorescent under a UV light!
Measures approximately 4” x 4” x 3”
*Each piece is unique. No two items are the same.