Barite
ID: 6
Barite
Chemical Formula
BaSO₄
Hardness (Mohs)
3–3.5
Crystal System
Orthorhombic
Streak
White
Luster
Vitreous to pearly
Diaphaneity
Transparent to opaque
Color
White, colorless, gray, blue, yellow, or brown
Cleavage
Perfect in one direction, good in two others
Crystal Habit / Mode of Occurrence
Tabular to prismatic crystals, fibrous or massive forms, commonly found in hydrothermal veins, sedimentary rocks, and with metallic ores
Density
4.3–4.6 g/cm³
Fun Facts
The name "Barite" comes from the Greek word barys, meaning "heavy," due to its high density. It’s the primary source of barium and is used in medical imaging as barium sulfate (a contrast agent for X-rays).