* Astronomy

Jiddat al Harasis 804 (JaH 804) 19.829°N, 56.482°E
Al Wusta, Oman
Found: 2013 Jan
Classification: HED achondrite (Eucrite)
History: Found by a meteorite prospector in January 2013.
Petrography: (A. Irving, UWS; A. Wittmann, WUSL) Igneous texture with larger (>1 mm) grains of exsolved pigeonite and calcic plagioclase plus interstitial groundmass regions rich in finer plagioclase laths and vesicular glass. Plagioclase contains numerous blebs of troilite, and pigeonite consists of patchy zones of recrystallized Ca-rich and Ca-poor pyroxene. Some clinopyroxene and plagioclase occurs as symplectitic intergrowths. Other accessory phases are ilmenite, Ti-rich chromite, Ti-poor chromite, silica polymorph, and a single Ni-free Fe-metal grain. Secondary celestite and strontiobarite (crystals ~10 m in size) are quite common.
Source MB 102