Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
History
Origin
USA
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Discoverer
Unknown
René Just Haüy
Etymology
From 17th century, because of its greasy feel and use like a soap
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
Class
Metamorphic Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
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Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock