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Black Galaxy Granite : Our Own Quarry

Please note that these are average samples only. Due to granite being a natural material, rough block, slabs, tiles, and monuments are all liable to vary in colour and veining, therefore absolute resemblance cannot be guaranteed.

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Black Galaxy Granite Image Black Galaxy Granite Description

Description: A fine to medium-grained, black gabbric anorthosite of the Precambrian period with golden-yellow sparkling broncite scales. This stone internationally may be nominated as a granite however in the area of application of the European Standard (EN) this stone must be nominated as gabbro.

Gabbro: A dark-coloured, coarse-grained intrusive igneous rock. Gabbro is 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.

Anorthosite: A Precambrian, phaneritic, intrusive igneous rock characterized by a predominance of calcium-rich plagioclase feldspar (90-100%), and a minimal mafic component (0-10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most commonly present. All anorthosites found on Earth consist of coarse crystals but some samples of the rock taken from the Moon are finely crystalline.

Synonyms: Black Ametist, Black Ametista, Black Amethyst, Black Amethysta, Black and Gold, Black Galaxi, Black Galaxy Granite, Black Gold Sands, GA 902, Galaxi Black, Galaxy Black, Galaxy Gold, Galaxy Star, Nero Ametista, Nero Galassia, Nero Galaxy, Nero Star Galaxi, Nero Star Galaxy, Star Galaxi, Star Galaxy Black, Star Galaxy Granite, Star Gallaxy, WG203

NOTE: For large projects it is essential to source the Black Galaxy from the same quarry supply since mixing background colours will be very noticeable.

Technical Information For Indian Black Galaxy Granite

Description: This material can have a dark black background, a dark black/green tinge or black with grey/white pinhead sized spotting. All will have golden specks in them however there are two distinct types: small/medium flake and large flake. There are many different quarries of Black Galaxy granite, the background colour and flecking can vary considerably. For large projects ensure that the blocks are all extracted from the same quarry face for matching purposes.

First Choice material will have no white lines or veins. Expect to pay a much higher price for large gangsaw-sized slabs. Lower cost Black Galaxy may have black or white lines or clouds however First Choice small blocks suitable for tiles and smaller-sized slab production are usually readily available. Low cost Black Galaxy retail tiles are usually of Commercial Quality material, only when placing First Choice alongside Commercial Quality would the layman tell the distinctive difference.

General Usage: It is mainly used for flooring, cladding, kitchen counters and table tops. It looks best when it is glossy but is also suitable for flamed (thermal), honed, river-washed, leather and brushed finishes. Available in both slabs and tiles.

Quarrying Area: Cheemakurti, Bodawada, Prakasam District, Andhra Pradesh, Southern India

Technical Specification

1. Compressive Strength: 2777 Kg/cm2
2. Comp. Strength after Gelivity: 2696 Kg/cm2
3. Ultimate Tensile Strength: 274 Kg/cm2
4. Coeff. Thermal expansion: 0.0045mm/mc
5. Water Absorption: 0.04%
6. Impact Test-Min Fall Height: 68 cm
7. Specific Gravity: 2.960 Kg/m3
8. Hardness (Moh's Scale): 6.5

Note: These figures and details are given for guidance purposes only, no reliance should be taken as to their accuracy.

Black Galaxy Granite Supplies

Full Container Loads (FCLs) Only

An FCL Of Natural Stone Will Hold Between 18-27 Tonnes Depending On The Port Of Unloading

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