Prehnite from Congo

Prehnite is from Djouga Diggings, Bendoukou village, Kayes Region Mail. 

Prehnite (chemical formula: Ca₂Al(AlSi₃O₁₀)(OH)₂) is a phyllosilicate mineral known for its soft apple-green to olive hues. Its tabular crystals or botryoidal clusters with waxy luster and translucent allure have earned it the reputation as the "gentle scholar" of mineral collections.