1 Definition
1.1 Definition
Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
1.2 History
1.2.1 Origin
New Zealand
Central Europe
1.2.2 Discoverer
1.3 Etymology
From Latin ignis fire + imber, imbr- shower of rain, storm cloud + -ite
From Latin granulum, a little grain or fine grained
1.4 Class
Igneous Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock