(Shusha, Elisavetpol, Azerbaydzhan,USSR) EH4 (stone)
Fell 7th April 1891
After detonations and the appearance of flame, a single stone of around 27Kg was found the next morning. Indarch is an enstatite chondrite type EH4. Enstatite chondrites are rare and represent less than 2% of all stony meteorites. The mineralogy indicates that E-chondrites are lacking in oxygen and must have formed in an oxygen poor environment. While oxygen is found in all other meteorites, the lack of oxygen in Indarch suggests that it formed in a different region of the solar system. The current understanding of the early solar system indicates only one possible oxygen-poor region - close to the Sun and within the orbit of planet Mercury.