| 单词 | crookesite | 
| 释义 | crookesitenoun  crookes·ite   ˈkru̇kˌsīt    plural -s     : a mineral (Cu,Tl,Ag)2Se consisting of selenide of copper, thallium, and silver occurring in lead-gray metallic-looking masses (specific gravity 6.9)   | 
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