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LITHOEN

Rock

Marble

A metamorphic rock produced from limestone or another carbonate rock, harder and more crystalline than its protolith. Its minerals are not flat or elongate, so it does not develop foliation.

Classification

rock class
metamorphic

How this record is known

2
Settled consensus
Cited as the accepted position of the discipline.

2 of 2 claims on this page cite at least one registered source. Counts describe how each statement is known, not how likely it is to be true.

What Lithoen records

Each claim states how it is known and cites its evidence.

EstablishedMetamorphism of limestone or another carbonate rock.

When limestone is subjected to metamorphism it becomes harder and more crystalline and changes into marble.

Evidence support: Supported by the cited evidence 3 sources, multiple sources, independence unknown

Evidence: British Geological Survey n.d. Primary authority; Commission on New Minerals, Nomenclature and Classification, International Mineralogical Association 2026 Primary authority; Mineral Data Publishing 2001 Institutional reference

EstablishedNo foliation, because the constituent minerals are not platy or elongate.

Some metamorphic rocks never develop foliation: limestone is made of minerals that are not flat or elongate, so no amount of pressure will align its grains.

Evidence support: Supported by the cited evidence one source

Evidence: U.S. Geological Survey n.d. Primary authority

In the knowledge graph

Record last updated 2026-09-06. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.