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.
