Ulexite is primarily composed of boron

dull or even fibrous

Size:  31 - 46 mm

Dimensions: 65x58x49 mm / 2

Tumbled Emerald | Brazil Tigers Eye Ulexite is primarily composed ofYou will receive 1 tumbled Emerald stone. The stones originate from Brazil, are between 35 80 Carats each and measure 20 35 mm (0. 8 1. 2 inches). Each rough Emerald stone is beautiful and unique, variations in size, shape and color should be expected. Note the specimen shown in the photos represent a small selection of what we have in stock, the size, shape and color of the specimen we send will vary. Ancient Romans associated the emerald with Venus,