To me it looks like a transitional brecciated eucrite/howardite, with minor impactor inclusions. The main impact on 4 Vesta had to be incredibly violent, and probably created a wider variety of lithologies than are accounted for in the HED achondrites. Your new piece might be evidence of that impact, and could be important to the right people. Does anyone know which institution, or foremost expert, would be best to contact with anomalous achondrites? I guess we will have to wait and see. On a side note, hopefully NASA's Dawn probe will be successful, and provide insights on the matter. Beautiful stone, and congratulations! -Jeremy
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