Mianra
Aicmiu
Catagoir	Mianra
Airionna

Is iad mianrai na comhdhuil nadurtha munlaithe tri phroiseiseanna geolaiochtula . Ta mianrai idir na reimse o fior- eiliminti go dti (silicates) an-chasta leis na milte foirmeanna fiosta (nil comhdhuil nadurtha san aireamh de ghnath). Is e " mianreolaiocht " staidear na mianrai.

Tagairti [ cuir in eagar | athraigh foinse ]

Is siol a bhaineann le mianra e an t-alt seo. Cuir leis , chun cuidiu leis an Vicipeid. Ma ta alt nios forbartha le fail i dteanga eile, is feidir leat aistriuchan Gaeilge a dheanamh.