Like if this guide is helpful
Slate is a fine-grained, metamorphic stone derived from sedimentary rock shale. It is uniform in colour, available in shades from dark to light green, mottled purple, black, grey, and dark red. 
Veined patterns from overseas have also recently been introduced. Unless its surface has been honed smooth, slate can be recognized by its distinct cleft pattern.
Have something to share, create your own guide... Write a guide
Explore more guides