A calcium boron silicate mineral, usually white or pale yellow, that is sometimes used as a gemstone or collected by mineral enthusiasts.
From Greek 'datus' (divisible) and 'lithos' (stone), named because the mineral can be cleaved or divided into parts. The term was coined in the early 19th century by mineralogists.
Datolite is fluorescent under ultraviolet light, glowing bright blue or white—mineral collectors love finding specimens that light up under UV lamps, making it a gemstone detective's favorite!
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