Archives
So what is slate anyway?
December 28, 2007 | < 1 | Peter Phillips
Slate is a fine-grained metamorphic rock that derives from sedimentary rock and shale deposits. The main constituents are quartz, chlorite, mica and calcite, with some also containing trace amounts of metals. Slate is formed when ocean or riverbed sediments are compressed and heated by the earth’s crust.
This heat and pressure produces the pronounced partings (cleavage) that give slate its distinct layered characteristic.
The color of slate is determined by its chemical and mineralogical composition. The colors visible in many slates are the result of the stone splitting along natural layers and exposing the metals to the atmosphere, which then oxidize (rust).
Today, most slate is sourced from India, China, Brazil, Wales and in some areas of the Eastern U.S. (mainly Vermont and Pennsylvania).
Loading...
Related Posts
-
It's been quite a year for our company and for this blog which is two years old as of this past Sunday. Thanks...
read more
-
On paper, you'd think that Las Vegas was the least green city in the world. With all of the lights that burn 24/4,...
read more
-
Anyway, Kye Grace helped us set up our watch us wreck a floor live feed, so that you can keep tabs on the state...
read more
-
There are loads of reclaimed wood stories out there, and some of them are downright incredible. One of the most attractive aspects of reclaimed...
read more
-
Here's an article which submits a few Christmas tree tips when you've got a real tree and wood flooring too. And for...
read more
-
In recent years, we’ve had troubles here in British Columbia with the pine beetle. Due to the warmer winter months thanks to global climate...
read more
