Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Slate

Slate（矿物名）

Slate is a very fine-grained metamorphic rock form composed of minute mica flakes. It shows excellent rock cleavage and has found many uses for its uniform flat plates. It has been extensively used for roof and floor tiles. It has been used for blackboards and is the standard material for the beds of pool tables.

slate 是一种由细小云母片组成的非常细腻的变质岩。它具有极好的岩石片理，因其均匀的平面板状结构而被广泛使用。它已被广泛用于屋顶和地板瓷砖。它也用于黑板，并且是台球桌床的标准材料。
Metamorphic
rock
变质岩
Texture
纹理
Parent
rock
母岩
Description
描述
Slate
Slate（矿物名）
Foliated
层状的
Shale
页岩
Very fine grained
非常细密的
 Index

Reference
Lutgens and Tarbuck
Ch 7
索引 参考 Lutgens 和 Tarbuck 第7章
 
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HyperPhysics ***** 地球物理学
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