They have mineral compositions and oxygenisotope ratios very similar to the H chondrites, which makes it probable that they originate from the same parent body. The best candidate for this parent body is the S-type asteroid6 Hebe., Meteoritics & Planetary Science, Vol. 33, p. 1281 (1998). Unlike most iron meteorites, the type IIE are thought to have been melted out of the chondritic surface of the parent asteroid by impacts during its early history.
It is a rare type with 21 known members as of 2009.