1 Definition
1.1 Definition
Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time
Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like
From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use
1.4 Class
Metamorphic Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock