A farmer searching for iron meteorites in the Gibeon strewnfield (Namibia) ran across these odd heavy rocks. He didn't know what they were, but he found them useful in constructing a wall on his property. Later, someone recognized the rocks and removed a sample for analysis. The study showed it to be an H3 chondrite with brecciated clasts of types 4,5, and 6 material.
Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing a small fragment like the one shown. Your purchase will include a labeled gemjar for safe storage.
From the Meteoritical Bulletin entry on Korra Korrabes :
Found 1996 November
Ordinary chondrite (H3)
A 22 kg stone plus 11 smaller pieces totaling ~18 kg were found in 1996 November in a dry river bed by a farmer who was searching for Gibeon irons. People searching with metal detectors recovered hundreds of additional buried, more weathered pieces within 50 m of the original material since 2000 November, bringing the total mass to ~120–130 kg. The largest specimen was used in a garden wall until 2000 August. Classification and mineralogy (L. Ashwal, RAU): a breccia with ~10–20 vol% angular to irregular, relatively lightcolored clasts, varying in size up to ~3 cm across; olivine, Fa13.8–27.2 (n = 152); low-Ca pyroxene, Fs8.4–27.8 (n = 68); excellent preservation of glass in chondrules; shock stage, S1; weathering grade, W2. Specimens: main mass owned by Dr. R. McKenzie, WRP, Pty. Ltd, Pretoria, 0001 South Africa; type specimens, four pieces totaling 192.7 g, TM.