Gypsum Gypsum is mined worldwide in places like Europe, Asia, and North America. The uses of this crystal span many industries, from use in construction to fertilizer additives, dating back millennia in human history to the ancient Egyptians in 7000 BC. An interesting modern-day use of gypsum is in brewing beer and wine, as it controls the final flavor and clarity of the beverage. Chemical Formula: CaH₄O₆S Name of Crystal Structure / Mineral: Gypsum Space Group: C 2/c Crystal Class & Bravais Lattice Type: Base-centered Monoclinic Lattice Parameters & Interaxial Angles: Lattice Parameters: ● a = 10.47 Å ● b = 15.15 Å ● c = 6.51 Å Interaxial Angles: ● 𝛂 = 90° ● 𝛃 = 151.55° ● 𝛄 = 90° Figure 1. Gypsum Ore Ca - Red O - White S - White Figure 2. 2x2 Polyhedra View Figure 3. 2x2 Space Filling View Figure 4. Unit Cell Figure 5. Structure Menu