Tag: trigon

Trigon Δ 😘 Fresh from the mineral ® 🇱🇰 CEYLON Natural spinel Crystal with trigon Dimension: 7.5 x 6.1 x 5.3 mm Location: city of gem Ratnapura, Sri Lanka Spinel is the magnesium–aluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is actually a large group of minerals. Gahnite, hercynite, […]