Cut That Agate 2 Pounds of Tumbled Selenite Assorted Size .75-2 Inch BEAUTIFUL STONES - Bonus Storage Box! Great Re-Usable Box! AVERAGE OF 45 PIECES PER BOX! - That is enough to give one to some of your friends! ETHICALLY SOURCED - Mined by hand in California, Tumbled and Polished in California! Polishing Waste Water is used in our Tree Grove! Selenite is a great irrigation tool! Selenite is SLIGHTLY soluble in water, which means you can watch it slowly erode over weeks and months and years when it is submerged in water.