Definition
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
History
Origin
Italy
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Discoverer
Unknown
René Just Haüy
Etymology
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
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Other Categories
Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock