Soft pitch is a black solid at a certain temperature , it will be solidified into a brittle solid with shell-like fracture.

常温下为黑色固体，在一定的温度下凝固成很脆的具有贝壳状断口的固体，呈玻璃相；

youdao

But a new look at Titan's insides reveals even more oddities: Beneath the brittle crust of ice lies a layer of slush. Deeper still is an underground ocean over a solid core of rock and ice.

但最近对泰坦内部的一项新研究却揭开了这颗奇异星球更为怪诞的一面：脆弱的甲烷冰地表之下，覆盖着一层冰泥，更深处依然是一个地下海洋，最中间是冰和岩石并存的固态核心。

youdao

Of its various allotropes, the most common is a lustrous, bluish, brittle, flaky solid.

可形成多种同素异形体，其共同特点都是有光泽、呈蓝色、易破碎的固体。

youdao