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May 08, 2024

Natural Herderite
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There are 11 Herderite(s) available at Multicolour.com

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.

Known Facts
Color Key:	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
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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Herderite Stats/
Popularity Index:	51469^hits
Total Items:	11^items
Total Weight:	CTS 15.25
Cheapest:	USD 140.80
Most Expensive:	USD 825.60
Largest:	CTS 2.58
Smallest:	CTS 0.44
Last Added:	07/05/23 09:00:24

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