Definition
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
England
European Foreland Basins
Discoverer
Abraham Gottlob Werner
Arnold H. Bouma
Etymology
From Old French esclate, from esclat (French éclat)
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock