Hibonite with Corundum, Calcite and Diopside

Tranomaro-Maromby area, Amboasary District, Anosy Region  Madagascar

Specimen size: 7.4 × 6.2 × 6 cm = 2.91” × 2.44” × 2.36”
Main crystal size: 5 × 2 cm = 1.97” × 0.79”