Natural Herderite

Herderite is a phosphate mineral belonging to the apatite, phosphate group. It forms monoclinic crystals, often twinned and variable in colour from colourless through yellow to green. It forms a series with the more common hydroxylherderite, which has more hydroxyl ion than fluoride.

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Our Herderite(s) are available in various shapes, sizes and colors. 11 Herderite(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Herderite Profile

Color information:	colorless, yellow, green
Refractive Index:	1.556 - 1.62
Chemical Composition:	CaBe(PO4)(F,OH)
Hardness:	5-5.5
Density:	3.02
Crystal Group:	Monoclinic
Ocurrence:	Pakistan, Germany
Sign of the Zodiac:	N/A
Month of the year:	N/A

It is found in many parts of the world, often in pegmatites and associated with other apatite minerals. It was first described in 1828 for an occurrence in the Sauberg Mine, Erzgebirge, Saxony, Germany. It was named for Saxon mining official Sigmund August Wolfgang von Herder (1776–1838).

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