libutron: Anatase crystal | ©National Museum Wales  Anatase is one of the five forms of titanium dioxide found in nature. Anatase crystals are translucent, brown, pale yellow, reddish brown, indigo, black, pale green, pale lilac, grey, rarely nearly

libutron: Anatase crystal | ©National Museum Wales  Anatase is one of the five forms of titanium dioxide found in nature. Anatase crystals are translucent, brown, pale yellow, reddish brown, indigo, black, pale green, pale lilac, grey, rarely nearly

tags: So many OTPs,

from: https://eikuuhyo.tumblr.com/post/166351176698