FinishDifferent finishes such as acrylic, wax, natural cleft, honed etc.
CompositionMuscovite, Cericite, chlorite, hematite, kaolinite, micas, quartz, clay and other accessory minerals (wide variation in composition).
HardnessSoft - easily scratched. They can also be as hard and dense as granite
AbsorptionLow - medium oil, water other liquids
Weathering characteristicsDue to the wide ranges of slate, this stone has wide ranges of weathering. Cleft planes provides permeability for water penetration resulting in spalling and flaking. Slates that have a high kaolinite content (a clay) display accelerated rate of deteriora
TendenciesAbsorbs oils and liquids.Softer/medium varieties scratches easily.