Barite is a rare accessory mineral at Mont Saint-Hilaire. Color varies from colorless to pale, lemon or bright yellow. Luster is vitreous. Diaphaneity is transparent. Crystal Habits include well-formed short prisms to 2mm, complex tabular to equant crystals to 1cm.
Fracture is uneven.
Streak is white. 2- without unfamiliar anions, barite group.