from The Century Dictionary.
- noun The character or state of being lamellated; specifically, in geology, an arrangement of the minerals of a metamorphic rock in parallel lamellæ or folia.
Sorry, no etymologies found.
In the adult, these lamellæ cannot be detected even after careful microscopic examination in the fresh state, but in preparations hardened in weak chromic acid it is possible to make out a distinct lamellation at the periphery of the body.
In the lower ranges of the hills, gigantic portions of gneiss rise conspicuously, so detached from the original chain and so rounded by the action of the atmosphere, aided by their concentric lamellation, that but for their prodigious dimensions, they might be regarded as boulders.