Code:ML200

名稱 銳鈦礦	Name Anatase
化學公式 二氧化鈦	Chemical Formula TiO2
莫氏硬度 5.5-6	Mohs scale of Hardness 5.5-6
描述 銳鈦礦的常見顏色是黑色，紅到黃棕色，深藍色和灰色.它的條紋是淡黃白色。光澤是金剛烷，到燦爛的金屬質感。 次貝殼狀斷口，易碎，不透明。	Description The common color of anatase is black, reddish to yellowish brown, dark blue and gray. Its streak is pale yellowish white.Luster is adamantine to splendent, metallic. Owning subconchoidal fracture.It is brittle and transparent to nearly opaque.
小挑戰 詞源？ 從希臘語中的“擴展”一詞。因銳鈦礦“八面體”實際上是一個四邊形雙錐體，因此相對於等距系統的八面體而言是延長的。 八面體暗指這種“雙金字塔”形狀。	Challenge Etymology? From the Greek anatasis for “extension,” since the anatase “octahedron” is really a tetragonal bipyramid and, thus, elongated with respect to the octahedron of the isometric system. Octahedrite alludes to this “double pyramid” shape.

Reference：https://en.wikipedia.org/wiki/Anatase

By 4A Cheung Sze Wing 04 on 19 April 2021