General
The International Meteorite Collectors Association (IMCA Inc.)
imca.cc/
Encyclopedia of Meteorites
http://www.encyclopedia-of-meteorites.com/
How to Buy a Meteorite
https://www.meteorites-for-sale.com/blog/buy-a-meteorite/
Meteorite Specimen Descriptions
http://www.meteorites.com.au/odds&ends/descriptions.html
Scale Cubes
http://scaleobjects.com/scale%20cubes/scalecubes.html
About the Twannberg Meteorite
Museum of Natural History of Berne: Exhibition presenting the spectacular findings of the Twannberg Meteorite
www.twannbergmeteorit.ch/
University of Arizona: The Twannberg (Switzerland) IIG iron meteorites: Mineralogy, chemistry, and CRE ages
journals.uair.arizona.edu/index.php/maps/article/view/15694
The Meteoritical Bulletin Database
www.lpi.usra.edu/meteor/about.php
Wikipedia: Twannberg meteorite
en.wikipedia.org/wiki/Twannberg_meteorite
Mindat.org: Twannberg meteorite, Twann, Biel (Bienne), Bern, Switzerland
www.mindat.org/loc-134122.html
Forscher entdecken eines der größten Meteoriten-Streufelder Europas
www.scinexx.de/newsletter-wissen-aktuell-20523-2016-08-19.html
Informations, Collections and Trading Places
Sahargems – an interesting site that offers Twannberg meteorites and other items for sale
www.saharagems.ch
Marmet- Meteorites – Peter Marmets collection of meteorites with interesting pieces for sale.
www.marmet-meteorites.com
Meteorite.fr – All about Meteorites
http://www.meteorite.fr/en/forsale/Twannberg.htm
Michael Farmer Meteorites
http://www.meteoriteguy.com/