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en.wikipedia.org/wiki/Slate

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original ... Slate is not to be confused with shale, from which it may be formed, or schist. The word "slate" is also used for certain types of object made from slate ...

geology.com/rocks/slate.shtml

Slate is a foliated metamorphic rock that forms from the metamorphism of shale.

flexiblelearning.auckland.ac.nz/rocks_minerals/rocks/slate.html

Slate is a low grade metamorphic rock generally formed by the metamorphosis of mudstone / shale, or sometimes basalt, under relatively low pressure and ...

www.reference.com/science/slate-form-f575b7fa9b2cf85f

A: Shale is a sedimentary rock while slate is a metamorphic rock formed from shale. Slate is much more durable than shale due to the metamorphic process it un ...

www.britannica.com/science/slate-geology

Sep 19, 2016 ... Slate was formed under low-grade metamorphic conditions—i.e., under relatively low temperature and pressure. The original material was a ...

www.softschools.com/facts/geology/slate_facts/389

Slate is a metamorphic rock that forms from mudstone or shale. The mudstone or shale normally contains ... Slate normally is formed from a sedimentary rock.

rocks.comparenature.com/en/formation-of-slate/model-2-8

Along with Slate Formation, also learn about Slate composition and transformation.

wiki.kidzsearch.com/wiki/Slate

Apr 24, 2013 ... Slate is a metamorphic rock. It is formed from shale by being under pressure and moderate heat. Shale itself is formed from muddy clay, and ...

www.quora.com/How-does-slate-form-naturally

Slate is formed by the compression of shale by tectonic action. It is considered a metamorphic rock. The clay minerals recrystallize into a sometimes dense form ...

www.naturalslate.com/natural-slate/history-of-natural-slate/where-does-slate-come-from

Aug 31, 2015 ... Variants in local chemistry and also problems under which the slate was formed have produced a wide range of shades and qualities and ...