1 Definition
1.1 Definition
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism
1.2 History
1.2.1 Origin
1.3.2 Discoverer
1.4 Etymology
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China
From Greek mulōn mill + -ite
1.6 Class
Igneous Rocks
Metamorphic Rocks
1.6.2 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.7 Family
1.7.1 Group
1.8 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock