Definition
Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers
History
Origin
Mount Kenya
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Discoverer
J. W. Gregory
Unknown
Etymology
From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
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Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock