• Forsterite
  • Forsterite
  • Forsterite
  • Forsterite
Silicates

Forsterite

$1,500.00   €1,353  £1,140.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC20373
A remarkably interesting specimen of creamy-tan Forsterite from its type locality of Monte Somma, the present day mountain being the remains of the volcanic cone which erupted in 79 AD, famously destroying Pompeii and Herculaneum.  Monte Somma is the type locality to 22 species and forms part of the Somma-Vesuvius Complex near to Naples in Campania, Italy.  The Forsterite crystals, which measure to around 5 mm, form an intermixed granular mass with tiny, sub-mm octahedral blackish to dark inky-blue Spinel crystals.  Volcanology, igneous petrology and an understanding of the upper mantel would have been in its infancy at the time Archduke Stephan acquired this specimen.

Ex. the Mineral Collection of Archduke Stephan Franz Viktor of Hungary (1817 to 1867), with a historic Archduke (Erzherzog) Stephan label incorporating his coat of arms.  This label measures 7.2 x 3.2 cm and has been very heavily trimmed across the top and left hand side. The right ornate margin remains intact, but half that across the bottom is missing.  The top half of the coat of arms is missing.  Although much of the writing is missing, the label retains the catalogue number 291/3.  A small label bearing a different number is glued to the base of the specimen which is mostly obscured  by a Carl Rumpff label, dated 1889 glued over the top.  It is understood these labels were trimmed by curators at the Museum of Natural History of the Humboldt University in Berlin, to fit within their specimen boxes, after being bequeathed by Carl Rumpff’s widow in late 1889.
 

Details

Dimensions
5.5 × 3.6 × 2.5 cm
Categories
Silicates
Locality
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Minerals on Specimen

Minerals on specimen
Forsterite

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