He bought an anthracite jacket that looks very stylish.

anthracite 是名词，指"无烟煤"，因其颜色深黑发亮，引申为"炭灰色"这种深灰偏黑的颜色。anthracite 来自希腊语 anthrakitis（类似煤的物质），词根 anthrac- 表示"煤"。