Jewelry sphalerite 18.39 ct
Spain is the birthplace of jewelry sphalerites. The Aliva deposit, where this sample was mined, is already depleted at the moment, but from time to time crystals from old reserves come to the market. The presented sphalerite is rather large, its weight is 18.39 carats. It is very beautiful in both color and cut. Despite the fact that the hardness of sphalerite is only 3.5-4 on the Mohs scale, daring fans make gold jewelry with it. It should be noted that the frame for it must be closed.