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  Black Galaxy Tile      
  Black Galaxy tile    

Other Names(AKA):

Black Galaxy
Available Sizes: 12x12, 18x18, 24x24
Available Finishes:  Polished, Honed, flammed
Color variation: Low

Price for 12x12:

$4.98    

Min. Order 300sq.ft. (could be mix)

 

 

           
 

 

What is granite?

Granite is a light-colored plutonic rock found throughout the continental crust, most commonly in mountainous areas. It consists of coarse grains of quartz (10-50%), potassium feldspar, and sodium feldspar. These minerals make up more than 80% of the rock. Other common minerals include mica (muscovite and biotite) and hornblende (see amphibole). The chemical composition of granite is typically 70-77% silica, 11-13% alumina, 3-5% potassium oxide, 3-5% soda, 1% lime, 2-3% total iron, and less than 1% magnesia and titania. Volcanic rock of equivalent chemical composition and mineralogy is called rhyolite. Granites are the most abundant plutonic rocks of mountain belts and continental shield areas. They occur in great batholiths that may occupy thousands of square kilometers and are usually closely associated with quartz monzonite, granodiorite, diorite, and gabbro.

Debate has long centered on whether granite is igneous or metamorphic in origin. Originally granite was thought to form mainly from magmatic differentiation of basaltic magma, but geologists now believe there is simply too much of it for it to have formed this way, except locally. Most granite seems to have formed either by melting, partial melting, or metamorphism of deeply buried shale and sandstone. Granite dikes are clearly igneous, and granite emplaced in the upper few kilometers of the Earth's crust also often shows evidence of forceful intrusion into surrounding rocks, whereas some granites that formed deeper within the crust seem not to have been forcefully emplaced. Evidence of intrusion or great mobility is considered to indicate an igneous origin that stems from melting of sediments; but where no good evidence of either a magma chamber or of fluidity is observed, a metamorphic origin must be considered.

Granite is used as a building and ornamental stone. Many ore deposits (copper, lead, zinc, gold, and silver, for example) were produced by hydrothermal solutions created during late stages of cooling of granite bodies. These may be emplaced around the peripheries or related to fissures and fractures within bodies of granite. approx. 27% quartz + mica, amphibole, pyroxene, albite feldspar, a building stone.

Black Galaxy

Black Galaxy granite is one of the world's most popular granite choices however this very success is now creating a problem, consequently, and it does not matter whether you are a trade or retail buyer, it is important to understand the fundamental differences between the various qualities you may be offered.

It is estimated that in excess of one million cubic metres of the granite has been quarried since extraction started.

The technical geological name for this granite is Gabbric Anorthosite. The material has a hardness of around 6.5 on the Moh's scale which can be termed as moderately hard.

Black Galaxy is from near Ongole, Andhra Pradesh, India. The original Galaxy material introduced in the early 1980's, with the densest black background and bright reflectors, is known as Star Galaxy. The Star Galaxy quarry is not a massive one therefore the volume of blocks produced could not supply all the dealers who purport to sell this material.

The gold specks are due to the presence of ferrous rich Enstatine (Bronzite). Black Galaxy can be broadly divided into three types based on the size of the gold coloured specks as:

  • 1. Large specked Black Galaxy
  • 2. Medium specked Black Galaxy
  • 3. Small specked Black Galaxy
  • BLACK GALAXY, BLACK & WHITE LINE VEINS

Like all natural stones Black Galaxy can and does vary in appearance and physical structure with natural veins a common feature within the material. Once again, these can broadly be divided into four types as follows:

  • 1. Slabs and tiles clean of any veining
  • 2. Slabs and tiles with one vein line
  • 3. Slabs and tiles with two vein lines
  • 4. Slabs and tiles with three vein lines or more

It must be stated that the vein lines do not affect the integrity of the material. They are natural hence they cannot be removed.

The presence of natural veins exists in nearly all the quarries, and considering that the recovery rate of the material has been poor, this has pushed up the cost of quarrying quite considerably. However the past few years has seen the Chinese purchasing many of the smaller blocks, many with veining, since they are not so obssessed with the Western culture of a "perfect" natural material. The Chinese now account for 95% of the purchases of small blocks.

Some blocks when viewed closley actually have a green tinge and slightly open veining in the background. Once more this does not affect the integrity of the material however this quality is usually valued slightly less and this quality particularly may need sealing when used for kitchen counter tops.

There are now over 44 quarries spread over 400 acres of land. The sizes of quarries range between 2 and 20 acres each. Around 8,000 CBM (Cubic Metres) of Black Galaxy granite is produced every month. Only 40% of the volume make up big blocks and are commonly called gang-saw size blocks and these are blocks of sizes above 2.40m x 1.20m x 1.00m.

The remainder of the blocks are used for producing tiles, dimensioned slabs, vanity units etc.

Precisely because of the variation of block sizes, in colour quality and vein lining, the price of the raw Galaxy rough blocks from the quarry can have an enormous price variance. The price paid for the rough block will be reflected in the finished product and since Black Galaxy is actively traded as a commodity and owing to the large volume of quarrying, large blocks in First Choice material are becoming scarcer and much more expensive.

As with all natural materials it is very important to view Black Galaxy before buying and not to buy on price alone.

Technical Specifications:

Description of Black Galaxy, Star Galaxy This material has a dark black background with golden specks in it.
General Usage for Black Galaxy, Star Galaxy It is mainly used for flooring, cladding, kitchen counters and table tops. It looks best when it is glossy. Available in both slabs and tiles.
Quarrying Area for Black Galaxy, Star Galaxy Cheemakurti, Bodawada, Prakasam District, Andhra Pradesh, Southern India
Technical Specification  
Compressive Strength 2777 Kg/cm2
Comp.  Strength after Gelivity 2696 Kg/cm2
Ultimate Tensile Strength 274 Kg/cm2
Coeff. Thermal expansion 0.0045mm/mcº
Water Absorption 0.04%
Impact Test-Min Fall Height 68 cm
Specific Gravity 2.960 Kg/m3
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.

 

 

Why can we offer better price than other suppliers?

Not only are we a wholesale supplier, we are a Direct Importer of Granite Tile & Stone.  This means we can offer great wholesale prices without dealing with the "middle man".  Also, being a direct importer insures either stocked or short lead time merchandise.

From trendy to traditional we supply quality tile at competitive pricing.

 

 

 

 We welcome,

Builders,

Architects,

Designers,

Dealers,

Home owners.

Save up to 40%

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