它们和石头一样五彩缤纷，在阴暗处会发出青绿色、灰白色或琥珀色的光芒。
They are as colorful as stones, shaded in turquoises, slates, and ambers.
外观为灰白色、灰绿色或灰黑色粉末，粉末极细，在阳光照射下，一般可见到粉碎的、类似玻璃体的物体存在，闪闪发光。
Look for the gray, gray green or gray-black powder, fine powder, in the sunlight, the general could be crushed to see, the existence of objects similar to the vitreous, sparkling.
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