Hello, up for sale is NWA Unclassified, probable  Eucrite Breccia Achondrite. This gorgeous slice weighs 4.375 grams, with black and tan colored matrix!! This meteorite comes from the Asteroid 4 Vesta; Vesta's unique composition means that it is responsible for an entire group of meteorites. The HED meteorites made up of howardites, eucrites, and diogenites tell the story of Vesta's early life. Eucrites form from hardened lava, while diogenites come from beneath the surface. Howardites are a combination of the two, formed when a large impact mixed the two sections together. Vesta is the second most massive body in the asteroid belt, surpassed only by Ceres, which is classified as a dwarf planet. The brightest asteroid in the sky, Vesta is occasionally visible from Earth with the naked eye. It is the first of the four largest asteroids (Ceres, Vesta, Pallas, and Hygiea) to be visited by a spacecraft. The Dawn mission orbited Vesta in 2011, providing new insights into this rocky world. This comes with a display case and a COA card from Streaming Meteorites. Thanks for your interest and take care.

This meteorite comes from a single stone, and too small to classify.

Space com says:

Vesta is unique among asteroids in that it has light and dark patches on the surface, much like the moon. Ground-based observations determined that the asteroid has basaltic regions, meaning that lava once flowed across its surface. It has an irregular shape, roughly that of an oblate spheroid (in nontechnical terms, a somewhat smooshed sphere).

Diameter: 329 miles (530 kilometers)

Mass: 5.886 X 1020 lbs. (2.67 x 1020 kilograms)

Temperature: 85 to 255 K (minus 306 to 0 degrees Fahrenheit / minus 188 to minus 18 degrees Celsius)

Albedo: 0.4322

Rotation period: 5.342 hours

Orbital period: 3.63 years

Eccentricity: .0886

Aphelion: 2.57 AU

Perihelion: 2.15 AU

Closest approach to Earth: 1.14 AU

The interior of Vesta is differentiated. Like the terrestrial planets, the asteroid has a crust of cooled lava covering a rocky mantle and an iron and nickel core. This lends credence to the argument for naming Vesta as a protoplanet rather than as an asteroid.

Vesta's core accreted rapidly within the first 10 million years after the formation of the solar system. The basaltic crust of Vesta also formed quickly, over the course of a few million years. Volcanic eruptions on the surface stemmed from the mantle, lasting anywhere from 8 to 60 hours. The lava flows themselves ranged from a few hundred meters to several kilometers, with a thickness between 5 to 20 meters. The lava itself cooled rapidly, only to be buried again by more lava until the crust was complete. Dawn's gravity put its core at about 18 percent of Vesta's mass, or proportionally, about two-thirds as massive as Earth's core.