Phosphate (Lazulite) and Scandium mineralization
Fischbacher Alpen, Styria, Austria





 
Geology of the Fischbacher Alpen, Styria, Austria, after Cornelius (1953) with major lazulite occurrences.



Locality map Rotriegel, Wegscheidkreuz, Granegg, Höllkogel

Locality map Fürstenbauer, Ganztal



Geological overview, including electron microprobe dating of monazite and xenotime I
(Abstract)

Geological overview, including electron microprobe dating of monazite and xenotime II
(Abstract)

Phosphate (lazulite) mineralization
(Abstract)

Scandium mineralization associated with lazulite-quartz veins
(Abstract, 0.2 MB, pdf-file)

Pretulite, ScPO4, in lazulite-quartz veins
(Abstract, with SEM-images of pretulite)

Hydrothermal alteration of monazite to florencite around lazulite-quartz veins
(Poster, 1.8 MB, pdf-file)

--> See also publication list

Polished slabs from lazulite-quartz veins

Features of primary mineralization (Permo-Triassic)


Lazulite vein breccia


Lazulite veinlets


Lazulite veinlet


Lazulite vein


Lazulite- and quartz-rich domains


Hydrothermal banding


Hydrothermal banding


Hydrothermal banding


Mineralogy (Primary and due to overprint)


Augelite


Th-rich crandallite-florencite-(Ce)


Kyanite after andalusite(?)


Corundum


Tourmaline


Pretulite


Features of Eo-Alpine overprint (Cretaceous)

Stage 1: Alteration of  lazulite




Stage 2: Mobilizates with grey to black apatite, partly replacing lazulite








Stage 3a: Veinlet-like mobilizates


Bearthite








Stage 3b: Patchy, coarse-grained apatite-chlorite(-quartz-lazulite)-mobilizates








Miscellaneous


Subhedral lazulite crystals


last changes: 23.6.2005

--> start page