Banding can also be caused by differing grain sizes of the same minerals.
The banding is usually due to the presence of differing proportions of minerals in the various bands dark and light bands may alternate because of the separation of mafic (dark) and felsic (light) minerals. Gneiss is medium to coarse-grained and may contain abundant quartz and feldspar, which some petrographers regard as essential components. Synonyms: Black Fantasy, Black Markino, Black Paradiso, Nero Foresta, Scorpio Black, Silver Paradiso There are three different quarries of Black Forest granite, the veining and colour varies considerably and a small sample is not representative of the whole block or slabs. Quarry Location: Black Forest granite is quarried near Chittor, Andhra Pradesh, India. Finished products are packed into sea-worthy wooden crates and loaded into containers. Rough blocks are usually exported by Break Bulk however intermodal containerisation is available at extra cost. For commercial projects it is important to ensure that blocks are selected from the same quarry face. It is possible that a sealant can be used on Black Forest granite however excessive attempts at sealing it could actually create a residue film build-up.īlock Sizes: These are quarries yielding selectable, grades of granite with blocks suitable for gangsaw size down to economical tile-sized blocks. Surface Finish: Black Forest granite looks best with a gloss polished surface but is also available as honed, leather/satin, river-washed/antique, thermal/flamed, brushed and sandblast finish. More granite tile and production information. Vertical Cutter Slabs 2200mm & above x 600~900mm (86"+ x 24~36"+)įree length or made to your dimensions, standard sizes areĢ400~3200 x 600/630/700/900/1000/1200/1220 x 30 mm (94~126" x 24~48")ĥ0mm through to 200mm thick are cut to customer specifications, please Contact Us with the material(s), sizes and finishes you require.Ĭalibrated Tiles: Standard sizes available are:Ĥ00 x 400 x 10 mm (15 3/4" x 15 3/4" x 3/8")Ĥ57 x 457 x 10/12 mm (18" x 18" x 3/8~1/2")ģ05/400/457 mm x Freelength for you to cut to length on site, usually no longer than 2000 mm (78")Ħ00 x 600 is available however usually a minimum 15/18/20 mm thick to ensure material stability Mini Gangsaw Slabs 2200mm & above x 1200mm & above (86"+ x 47"+) Medium Gangsaw Slabs 2800mm & above x 1400mm & above (110"+ x 55"+) When available Jumbo Gangsaw Slabs 3000+mm x 2000+mm (118"+ x 78"+)
Products: Suitable for construction projects both commercial and domestic, prefabricated countertops/worktops, vanities, tiles, backsplashes, paving, fireplaces and memorials. Black Forest granite is suitable for both interior and exterior use futhermore is frost resistant and with a constant polish.
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. The veining and colour varies considerably therefore a small sample of Black Forest granite may not be representative of the whole slab therefore swatch samples must be approved for large projects to ensure that the blocks are all extracted from the same quarry face for matching purposes. This stone internationally may be nominated as a granite but in the area of application of the European Standard this stone must be nominated as a gneiss. Description: Black Forest Granite, Silver Paradiso Granite is a dark grey to black gneiss of the Precambrian period with many white veins and decoration together with dark patches.
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