EFF70CDD: We've seen many pieces of this material, but just a few in matrix like this one, and also with the well-defined 'star' of Rutile-Hematite.
Caí bom Mine, Novo Horizonte, Bahia, Northeast Region  Brazil

Specimen size: 4.7 × 4.5 × 1.9 cm = 1.85” × 1.77” × 0.75”

Main crystal size: 2 × 0.1 cm = 0.79” × 0.04”