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RM3758   Lulzacite, Siderite
Sr₂Fe²⁺(Fe²⁺,Mg)₂Al₄(PO₄)₄(OH)₁₀
  -  8. Phosphates, arsenates and vanadates
#3148
Bois-de-la-Roche carrière, Saint-Aubin-des-Châteaux, Châteaubriant-Ancenis, Loire-Atlantique, Pays de la Loire, France

Lulzacite is a very rare complex strontium phosphate, found only in this French quarry and described in the year 2000. It is isotypic (similar to isostructural) with jamesite and désorite. Specimens are very difficult to find. Grayish-green nodules of lulzacite can be observed embedded in a matrix with quartz and siderite.

Jamesite: Pb₂Zn(Fe²⁺,Zn)₂Fe³⁺₄(AsO₄)₄(OH)₁₀
Désorite: Pb₂(Fe³⁺₆Zn)O₂(PO₄)₄(OH)₈

Size: 3.3 x 2.7 x 2.2 cm
Type Locality
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40 €
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