Brecciated meteorites composed of fragments from multiple rock types that impact processes have fused together. They often contain a mix of different lithologies, including chondritic, achondritic, or even foreign material from other planetary bodies. These meteorites provide insight into impact history, regolith processes, and the complex geological evolution of their parent bodies.

--Diogenite--

A type of achondritic meteorite that originates from the deep crust of the asteroid 4 Vesta. It is primarily composed of magnesium-rich orthopyroxene, often giving it a greenish or yellowish hue, and represents some of the oldest igneous rock in the solar system. Diogenites provide valuable insights into planetary differentiation and crust formation on small bodies.

--4 Vesta--

One of the largest objects in the asteroid belt, spanning about 525 km (326 miles) in diameter, and is the second most massive asteroid after Ceres. It has a differentiated structure with a core, mantle, and crust, making it more like a small planet than a typical asteroid. Vesta is the parent body of HED meteorites (howardites, eucrites, and diogenites), which provide direct evidence of volcanic and geological activity in the early solar system.