Rosette growths of very sharp and shiny tabular Hematite crystals on matrix.
The specimen, from a locality little known among mineral collectors, comes from the Alain Martaud collection.
The Stahlberg area is a classical hydrothermal iron mineralization zone within the Vosges Massif, renowned, among others, for its Hematite variety “iron rose” crystallizations formed in fracture cavities hosted by metamorphic rocks.
Stahlberg Mountain, Rimbach-près-Masevaux, Thann-Guebwiller, Haut-Rhin, Grand Est France (1974)
Specimen size: 4.7 × 3.5 × 3.4 cm = 1.85” × 1.38” × 1.34”
Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”
|