• Groutite
  • Groutite
Rare Minerals

Groutite

$600.00   €553  £460.00 approx.  

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

ID: CC28475
Groutite is a rare manganese hydroxide that is known to form excellent crystallised specimens at the Emilie mine, also known as Bülten-Adenstedt mine, in the Peine district of Lower Saxony, Germany.  The Groutite forms a mix of hemispherical and oblate botryoidal surfaces over which silver black crystals of a different habit of Groutite cover a roughly 3 x 2 cm area.  These crystals are tabular with rounded terminations and appear to be built from masses of parallel, highly lustrous Groutite fibres.  A quite gorgeous miniature of this rarely encountered manganese species.

Details

Dimensions
4.2 × 6.1 × 2.7 cm
Categories
Oxides and Hydroxides, Rare Minerals
Locality
Emilie Mine (Bülten-Adenstedt Mine), Peine, Lower Saxony, Germany, Europe

Minerals on Specimen

Minerals on specimen
Groutite