Twannberg

A natural fragment of the Twannberg meteorite.

Specimen Name: Twannberg

Specimen Type: Iron, IIG

Location of Find: Switzerland

Date of Find: May 9th 1984

The Twannberg meteorite was found in a barley field after ploughing in the Nidau district of Switzerland.

Upon study, Twannberg was classified as a IIG. This rare group has only six meteorites in its class. As stated in a study conducted by John T. Wasson, “The members of this group have low-Ni [Nickel] contents in the metal and large amounts of coarse schreibersite ((Fe,Ni)3P); their bulk P [Phosphorus] contents are 17–21 mg/g, the highest known in iron meteorites. Their S [Sulfur] contents are exceptionally low, ranging from 0.2 to 2 mg/g.

XS- 0.2G-0.5G

S- 0.6G-0.9G

M- 1G-1.8G

L- 1.9G-4.2G

XL- 4.3G-4.7G

The meteorite comes in a small plastic casing with foam to protect each fragment. As well as a Specimen Identification Card for you to display at home. This is perfect as a gift!

Each of our Twannberg fragments is similar to the one shown in the image, however no two fragments are identical.