THE MINERAL HUREAULITE


Hureaulite is a somewhat rare mineral but is a popular collection mineral. It forms nice clusters of crystals with a pink color. Although the crystals are usually small, they do provide a good sparkle and make for attractive specimens.

Hureaulite's chemistry is unusual in that it has the unusual ion group of PO3{OH}. This group is the same as the regular phosphate ion group except that one of the four oxygens is replaced by an hydroxide or OH group. Sometimes the formula for hureaulite is written as Mn5H2(PO4)4 - 4H2O. The mineral sainfeldite is similar, but with arsenate as the affected ion group.

PHYSICAL CHARACTERISTICS:

 

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