Definition
Diatomite is a fine-grained sedimentary rock which is formed from consolidated diatomaceous earth
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
History
Origin
Germany
Tanzania
Discoverer
Unknown
Unknown
Etymology
From diatom + -ite1
From any intrusive igneous rock, having a majority of carbonate minerals
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Soft Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock