Posted by: Maia Sinkins on 08.31.2020 | Filed under:


Specimen # 100954
Mineral: Hydroxylherderite
Location: Morro Redondo Mine, Coronel Murta, Minas Gerais, Brazil
Size: 5.3 x 5.1 x 3.4 cm
Price: $200.00 CAD


1 in stock


This specimen hosts a number of sharp, lustrous hydroxylherderite crystals on albite and quartz. It’s pretty uncommon that a mineral specimen looks equally great from three different angles, but this specimen does. The largest crystals show a very obvious zoning, with a slightly lilac-hued darker core (with uneven, irregular border), a lighter zone and then a golden light brown outer zone. The largest crystal is an interesting form that looks like it is twinned, but I wonder if this may in fact be a parallel-growth feature (I could be wrong, as hydroxlherderite does frequently exhibit twinning). Small gemmy muscovite crystals in association. In excellent condition, two small nicks. A super, sharp Brazilian hydroxlherderite.

Additional information

Dimensions 66 × 51 × 26 cm