minerals

paravauxite

stewartite

rockbridgeite

Laueite

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Formula: Mn2+Fe3+2(PO4)2(OH)2.8H2O
Hydrated phosphate containing hydroxyl, paravauxite group, paramorph of stewartite
Specific gravity: 2.44 to 2.49
Hardness: 3
Streak: White
Colour: Honey-brown, amber, yellow, dark yellow, yellow-orange, reddish orange
Solubility:
Environments:

Pegmatites

Laueite is a common late-stage mineral in oxidised triphylite-bearing granite pegmatites (HOM), associated with beraunite, jahnsite, rockbridgeite, stewartite and strunzite (Mindat).

Localities

At the type Locality, the Hagendorf South Pegmatite, Waidhaus, Neustadt an der Waldnaab, Upper Palatinate, Bavaria, Germany, laueite is associated with rockbridgeite (HOM).

At the Emmons pegmatite, Greenwood, Oxford county, Maine, USA, laueite is associated with strunzite or beraunite. The Emmons pegmatite is an example of a highly evolved boron-lithium-cesium-tantalum enriched pegmatite (R&M 94.6.510).

At the Palermo #1 mine, New Hampshire, USA, laueite is associated with rockbridgeite, strunzite, stewartite and pseudolaueite, all implanted on siderite and ludlamite (AM 50.1884-1892 HOM).

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