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Black Granite Mantels

Cast Tec offer a range of three stunning mantelpieces manufactured in pure black granite from the Shanxi Province of northern China.


Shanxi Black has been used in the manufacture of fireplaces for many years and tends to be generally black but sometimes there is a slight grey fleck which can change the depth of the blackness.


Our three granite mantel designs, the Athena, Durham and Flat Victorian, have optional shelf lengths of 1350mm (53″) or 1500mm (59″) and arrive polished or honed (matt) with concealed fixing attachments.





honed black granite material

Cast Tec also offer granite back panels and hearths (boxed and lipped) for those requiring a full granite suite.


Black granite has many advantages over other materials:


a) colour is very consistent for a natural stone product.

b) the black compliments other colours used in your fireplace and dècor.

 black granite material. c) it is an extremely hard material quite difficult to scratch, chip etc.

d) it is very easy to maintain after fitting.

e) it can be used throughout for high temperature installations.

athena black granite mantel
Athena
durham black granite mantel
Durham
flat_victorian black granite mantel
Flat Victorian



About Shanxi Black Granite:
Shanxi Black Granite is one the most popular granites used the fireplace industry and is also called Absolute Black, China Black, China Supreme Black or Nero Supreme.

Quarried near Beiyve, Shanxi Province in China, Shanxi Black is actually a fine-grained, intensive black gabbro. This stone internationally may be nominated as granite however in the area of application of the European Standard this stone must be nominated as a gabbro. Gabbro is an intrusive igneous rock and very similar to basalt in its mineral make up. It is composed mostly of the mineral plagioclase feldspar with smaller amounts of pyroxene and olivine.

Shanxi Black Granite is nearly always massive (lacking any internal structures) and is therefore a highly stable structure in hardness, toughness and has a nice fine grain, which enables it to be available in small standard tile sizes up to big slab stones.

Suitable for both interior and exterior use, Shanxi Black is frost resistant, has low permeability and maintains a constant polish making it suitable for construction projects both commercial and domestic including countertops, worktops, vanities, tiles, backsplashes, paving and memorials.

The melting temperature of dry granite at ambient pressure is 1215-1260 °C which makes it ideal to be used as a hearth or part of a fireplace.

There are several types of Shanxi granite including varieties with gold spots. First choice Shanxi Black Granite will have no gold spots or veins. Lower cost Shanxi Black Granite may have gold spots, may not be able to take a gloss polish and if inconsistent in colour may even be dyed. CastTec use only top grade Shanxi Black Granite.

During the polishing process a clear epoxy resin filler may be used to fill any micro fissures or tiny pitting however this does not affect the integrity of the stone, it merely provides an even smoother surface finish. CastTec offer a high gloss polished finish or a more subtle honed (matt) finish.