14870525-n 'variety of silica containing microcrystalline quartz';
 
汉语 角岩 , 黑硅石 , 燧石 , 黑矽石
英语 chert ( ⊳ )
日语 角岩
Definitions
英语
variety of silica containing microcrystalline quartz
日语
微晶質の水晶を含むシリカの種類
Relations
Hyponym: taconite
Hypernym: silica
Semantic Field: substancen
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