He iti te ma, he kowhai marama ranei, he paura reka me te paitini me te taumaha motuhake o te 6.1 me te taupū refractive 2.25.Kare e taea te rewa ki te wai, engari ka memeha ki te waikawa hauwai me te waikawa nitric.Ka huri ki te hina me te pango i te 200℃ ka huri ki he kowhai i te 450 ℃,he pai te tangohanga.He antioxidant he pai te mahi o te aukati ki te hihi hihi ultraviolet me te koroheketanga.