Home > Type Localities – March 17 > MS1532 Ardennite-(As)
Ardennite-(As) - Sold
- Salmchâteau
- Ardennes
- Luxembourg Province
- Belgium
- 6.9 by 4.9 by 4.8 cm – Small cabinet specimen (under 10 cm)
Ardennite-(As), originally simply ardennite, is a complex manganese aluminum arsenate silicate. Von Lasaulx (1872) named the mineral after the Ardennes Region, wherein the type locality resides. Von Lasaulx noted that ardennite-(As) has significantly varying directional hardness, like that seen in kyanite. In their description of the related mineral ardennite-(V), Barresi et al. (2007) present a history of ardennite. Their paper led to decision 2007-A of the International Mineralogical Association, wherein the original ardennite became ardennite-(As).
This specimen consists of brownish yellow cleavages of ardennite-(As) to 2.4 cm frozen in white quartz. Rich sample. This specimen carries a vintage Dr. David H. Garske label dating to the period 1979-1996.