Polarised light micrograph of a thin section microscopic slide of the JaH 055 L 4-5 (Jiddat al Harasis 055) chrondite type meteorite, found 2004 in the region of Al Wusta, Oman. Chondrites are stony (non-metallic) meteorites that have not been modified due to melting or differentiation of the parent body. They are formed when various types of dust and small grains that were present in the early solar system accreted to form primitive asteroids. They are the most common type of meteorite that falls to Earth. Horizontal object size of this section: 1.2 mm.