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Danalite

Danalite, is beryllium bearing, and found typically in tin-beryllium skarns, but also found in NYF style pegmatites as is this occurence.

Datolite

Named after a translation of a Greek word meaning “to divide,” after the granular structure of the minerals massive variety of formation and habit. Datolite is a relatively uncommon mineral that occurs as a secondary mineral in mafic igneous rocks, geodes, tuffs, skarn in limestone, serpentinites, hornblende schist, and some ore veins. Localities for fine specimens of Datolite include in Norway, Germany, Italy, Austria, Japan, Russia, the USA, and Mexico, among many others. Datolite can fluoresce blue, commonly, under short-wave ultraviolet light.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/datolite.pdf

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