Stone image

Black Lace Slate

Black Lace Slate is a rare, unique stone used for interior and exterior applications. Because of its superior properties and performance, three dimensional appearance and rich texture, architects specify this natural slate for interior flooring, exterior paving stone, stair treads, fireplace surrounds and stone wall cladding. Black Lace Slate is available in natural cleft, honed and cascade finishes.


  • Finish poster
    Natural Cleft Finish

    A textured, natural finish both visually and to the touch. Achieved by splitting the stone along its cleave with a hammer and chisel.

  • Finish poster
    Honed Finish

    An extremely smooth, eggshell finish. Achieved with the use of the diamonds.

  • Finish poster
    Cascade Finish

    A fairly flat, uniform finish with subtle ripples and soft texture.


Stone Type



Silvery gray to black, and highly reflective. It has a three-dimensional appearance even when honed smooth. Natural markings occur.

Weathering Characteristics

“Semi-weathering”, meaning that some pieces change color when used outside and others do not. Those that do take on gold tones. (Black Lace’s weathering characteristic is an aesthetic consideration and does not adversely affect its performance or durability).


interior, exterior


Relatively even cleft, exceptionally strong and hard, durable, dense, low absorption rate, resistant to freeze-thaw cycles. Slip-, stain-, and heat-resistant. No detrimental effects on the environment.


Depending on the application, an impregnating sealer may be required. Contact us for information regarding the use of sealers, impregnators, oiling, cleaning, etc.


Upon request

ASTM Results

Upon request

  • Interior Flooring
  • Exterior Paving
  • Stair Treads
  • Wall Cladding
  • Counter Tops
  • Window Stools and Sills
  • Fireplace Surrounds
  • Coping and Chimney Caps
  • Landscaping
  • Furniture and Signs