Rising Brothers

Copper sulfate crystals are vivid blue diamond-shaped crystals. Copper sulfate crystals are actually crystals of copper sulfate pentahydrate. The compound incorporates water into its structure. The crystals are easy to grow using an inexpensive, common chemical.

Copper(II) sulfate, also known as copper sulphate, is an inorganic compound with the chemical formula CuSO4. It forms hydrates CuSO4·nH2O, where n can range from 1 to 7. The pentahydrate (n = 5), a bright blue crystal, is the most commonly encountered hydrate of copper(II) sulfate. Older names for the pentahydrate include blue vitriol, bluestone,vitriol of copper,and Roman vitriol. It exothermically dissolves in water to give the aquo complex [Cu(H2O)6]²⁺, which has octahedral molecular geometry. The structure of the solid pentahydrate reveals a polymeric structure wherein copper is again octahedral but bound to four water ligands. The Cu(II)(H2O)4 centers are interconnected by sulfate anions to form chains.^[12] Anhydrous copper sulfate is a light grey powder.