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Mineralpedia Details for Laueite

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Laueite

Laueite

Formula
Mn2+Fe3+2(PO4)2(OH)2ยท8H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow orange, honey brown, light brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
WebMineral
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Laueite from Mangualde, Viseu dist., Portugal

Laueite
            from Mangualde, Viseu dist., Portugal

Yellow Laueite crystals to 0.5mm or more on purple Strengite. Most of the matrix seems to altered to Rockbridgeite. The fringe of the vug which encloses the strengite is Bermanite. There is perhaps some hints of Jahnsite-(CaMnMn). Some areas contain a lot of carbonate apatite. The exact mine locality is not known. The Mangualde district pegmatites are granitic and rich in phosphates. Garske label.

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