Which Mineral can scratch glass has a non-metallic luster has a fracture and is a dark red color?

The mineral you are describing is likely garnet, specifically a variety like almandine, which is dark red in color. Garnet has a hardness of about 7.5 to 8 on the Mohs scale, allowing it to scratch glass. It exhibits a non-metallic luster and typically shows a conchoidal fracture.