SLATE
A foliated metamorphic rock with a rustic finish.
Slate
It is a multi-layered metamorphic rock created by alteration of shale or mudstones through low grade metamorphosis. Originally formed as deep-water mud stones on ancient sea floors. They were then lifted, folded and metamorphosed into what we currently know as slates.
Properties
Due to its layered and low-porous nature it is very attractive and majorly used in roofing, wall cladding and landscaping purposes. Slate is a remarkable roofing material and has been part of Himalayan architectural heritage. Its properties like low water absorption, fire resistant and energy efficient makes them most durable for colder regions.
Location & Color
In India, slate is abundantly found in several districts of Himachal Pradesh with the best roofing slate found in Kangra districts, Aravalli ranges in Rajasthan and Haryana and Kadapa System in Andhra Pradesh and Tamil Nadu.
Slates are majorly found in light to dark grey colors but sometimes it is also found in shades of green, red, black, purple and brown depending upon the amount of iron in the rock.