H4 class has a Shock Rating of 2 and a Weathering Grade of 2-3 and the classification information was published in Meteoritical Bulletin 85

This world class specimen will come with a Canagem® Collection specimen card plus the original Certificate of Authenticity from SR Meteorites and finder Stefan Ralew of Germany

Some crystals of apophyllite are cut as gems

Origin: Luster # 2 1/2 Pegmatite

The name Muscovite comes from the term Muscovy Glass which was a name for the thick sheets of Mica used as a substitute for glass Russia

NWA 2845 Meteorite | 3.7 Grams | Part Slice | H4 | Sahara Desert Sillimanite H4 class has a ShockThis is a fine part slice specimen of the Northwest Africa (NWA) 2845 meteorite found in the Sahara Desert in 2004. This nice collectible H4 chondrite consists of a brecciated matrix with light and dark clasts and is characterized by abundant chondrules and metal flakes. The total Mass is registered at 546 grams from a single stone. The Shock stage is recorded at 3 and the Weathering grade is 2. This is a nice piece weighing 3. 7 grams with dimensions