Ferrosaponite – Holotype material | Type locality Siberia | Rare collector's mineral

A mineralogical specialty for discerning specialist collectors!

According to information from the original mineral dealer, this tiny ferrosaponite specimen comes from parts of the holotype material of the mineral species.

A holotype is the scientific reference specimen used to first describe and define a new mineral species. Such material therefore possesses special scientific and historical collection significance.

Ferrosaponite was recognized as an independent mineral species in 2002 and first described scientifically in 2003.

The official type material is kept in the geoscientific collections of the TU Bergakademie Freiberg.

Mineralogical details

- Mineral: Ferrosaponite
- Locality: Levoberezhye, Nizhny Tunguska, Siberia, Russia
- Type locality of the mineral species
- Provenance: According to dealer information, part of the holotype material
- Appearance: Tiny, green-black mineral aggregate
- Size: Below or up to approx. 1 mm
- Delivery: In a transparent collector's capsule

Due to its small size, this specimen is particularly interesting for systematic mineral collectors and enthusiasts of scientifically significant minerals.

Note: The provenance from holotype material and the analysis are based on information provided by the original dealer.





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