Item description from the sellerItem description from the seller
Obtained directly from a borax mine in Boron, CA where we obtained the Ulexite. Colemanite and Kernite are also mined here. "Ulexite" is a natural mineral (NaCaB5O9.8H2o) from a borax mine in Boron, California.
Condition
New. A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's listing for full details. See all item conditions