Tags: Chemical Substance, Mineral.
Datolite is a calcium boron hydroxide nesosilicate CaBSiO4(OH). It was first observed by Jens Esmark in 1806 and named by him from δατεῖσθαι to divide and λίθος stone in allusion to the granular structureof the massive mineral.Datolite crystallizes in the monoclinic system forming prismatic crystals and nodular masses. The luster is vitreous and may be brown yellow light green or colorless. The Mohs hardness is 5.5 and the specific gravity is 2.8 – 3.0.
