M-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfelsM-35 sillimanite hornfels BushveldBallachulish
Bushveld inner aureole
Photomicrographs of hornfels assemblages and microstructures in the transition zone between porphyroblastic and finely granoblastic texture