Keʻokeʻo iki a i ʻole melemele māmā, ʻono a ʻona ka pauka me ka ʻumekaumaha kikoʻī o 6.1 a me ka helu refractive 2.25. ʻAʻole hiki ke hoʻoheheʻe i ka wai, akā hiki ke hoʻoheheʻe i loko o ka waika hydrochloric a me ka waikawa nitric. melemele ma 450 ℃, a he maikaʻi ka deductibility. He antioxidant ia i ka hana maikaʻi loa o ke kū'ē i ka raycold ultraviolet a me kaʻelemakule.