Pikaesite
Black Galaxy Granite Slab is a dark Indian natural stone distinguished by fine bronze-gold reflective flecks scattered across a predominantly black surface. Commercially known as Black Galaxy Granite, Star Galaxy Granite or Galaxy Black Granite, it is used for polished kitchen islands, countertops, bathroom vanity tops, flooring and architectural panels. The material is available in large slab formats, with 18mm, 20mm and 30mm thickness options depending on the production lot. Its characteristic appearance comes from reflective mineral inclusions within the dark stone rather than applied decorative particles, and the size and concentration of these inclusions vary naturally.
Black Galaxy Granite Slab: Indian Black Stone with Golden Mineral Flecks
Musta Galaxy Graniitti is quarried in Andhra Pradesh, India, particularly in the Chimakurthy stone-producing area. It is recognized by a nearly black groundmass containing small reflective mineral inclusions that appear bronze, copper-gold or occasionally silvery under direct lighting.
The stone is widely traded as granite, although its geological classification is commonly associated with gabbro or noritic rock. Its dark base and reflective mineral grains distinguish it from uniformly black varieties such as Shanxi Black Granite.
The appearance changes with lighting direction. In diffuse daylight, Black Galaxy can look like a predominantly black surface with subtle mineral texture. Under focused lighting, the reflective grains become more visible, producing the characteristic star-like pattern.
This contrast makes the material suitable for large kitchen countertops and islands where the stone remains visible across an uninterrupted surface. It also gives polished wall panels and floor tiles a more textured appearance than a plain black stone.
Black Galaxy Granite 18mm Slabs and Other Thickness Options
Black Galaxy Granite 18mm Slabs are commonly considered for fabricated countertops, wall panels and other interior stone components where the approved support system accommodates the selected thickness.
For kitchen islands and worktops, 20mm or 30mm material may also be specified. Thickness selection should reflect the cabinet support, countertop spans, sink openings, edge details and any areas requiring reinforcement.
The original Esta Stone product listing describes slab formats ranging from medium pieces to larger production slabs. Reference formats include approximately 1800×600mm, 2400×1200mm and 2800×1500mm or above where suitable blocks are available. These are format references, not a guarantee of exact current inventory.
A large island with an uninterrupted stone surface may need a wider slab than a standard kitchen worktop. The fabricator must also allow material around sink cutouts, joints and exposed edges.
Before cutting, the usable dimensions of the actual slab should be checked. Nominal slab size does not account for every edge defect, natural variation or processing allowance.
Black Galaxy Granite Slab Sizes, Finishes and Product Specifications
Black Galaxy is supplied as a semi-finished stone slab and can be processed into tiles, countertops and drawing-based components. The following specifications distinguish the natural stone material from its fabricated product forms.
| Tuotteen nimi | Black Galaxy Granite Slab |
| Other Commercial Names | Galaxy Black Granite / Star Galaxy Granite / Black Galaxy Granite |
| Natural Stone Identity | Black Galaxy Granite, Commercial Granite; Geologically Gabbro-Family Stone |
| Alkuperä | Andhra Pradesh, India |
| Pohjaväri | Deep Black |
| Visible Mineral Pattern | Fine Bronze-Gold Reflective Flecks; Natural Distribution Variation |
| Levyformaatit | Medium and Large Slabs; Reference Formats from 1800×600mm to 2800×1500mm and Above Where Available |
| Paksuus | 18mm / 20mm / 30mm, Subject to Production Lot |
| Surface Finishes | Polished; Honed or Textured Finishes by Material Confirmation |
| Tuotemuodot | Slabs / Cut-to-Size Tiles / Countertops / Vanity Tops / Wall Panels / Stair Components |
| Pääasialliset käyttökohteet | Apartment Kitchens / Villa Countertops / Bathroom Vanities / Interior Floors / Commercial Cladding |
Indian Black Granite: Golden Fleck Distribution and Slab Selection
The most recognizable feature of Intialainen musta graniitti sold as Black Galaxy is the reflective speckling. However, not every block contains the same concentration or size of golden inclusions.
Some slabs have a finer, more closely spaced distribution of small flecks. Others contain larger reflective grains or wider dark areas between them. The perceived sparkle also depends on the lighting used to inspect the stone.
For a kitchen island made from more than one slab, the difference becomes visible where two sections meet. Similar background depth and fleck density generally produce a more consistent finished surface than mixing unrelated lots.
Small samples are useful for identifying the material, but they cannot show the overall distribution across a complete slab. Full-face slab photographs taken under consistent lighting are more useful for evaluating large worktops and multi-panel orders.
Stone selection should also distinguish actual mineral inclusions from processing marks or filled surface pits. A consistent mineral pattern is a material characteristic; scratches, chips and unacceptable polishing marks are finishing issues.
Black Galaxy Granite Physical and Mechanical Properties
The following results are representative laboratory reference ranges published for Star Galaxy / Black Galaxy stone. They are associated with the stated test methods and describe the material type, not certified results for the current slab lot.
| Fyysinen ominaisuus | Test Standard | Reference Result | Yksikkö |
|---|---|---|---|
| Apparent Density | EN 1936 | 2960–3010 | kg/m³ |
| Water Absorption by Mass | EN 13755 | 0.02–0.06 | % |
| Taivutuslujuus | EN 12372 | 16–21 | MPa |
| Puristuslujuus | EN 1926 | 225–250 | MPa |
Representative material data must not be used as a substitute for batch-specific testing, structural design or project acceptance criteria. Actual performance can vary with the stone source, production lot and finished dimensions.
Black Galaxy Granite Polished Slabs for Countertops and Wall Panels
Black Galaxy Granite Polished Slabs are the most recognizable presentation of this material. A polished finish deepens the black background and creates reflections that make the bronze-gold grains more apparent.
This finish suits kitchen islands and vanity countertops where a darker, reflective surface is part of the design. It also works for vertical panels that receive controlled interior lighting.
Alternative finishes, including honed or leathered surfaces, may be requested after the current material and production capability are confirmed. These finishes alter the visual depth of the black base and the way the mineral inclusions reflect light.
For floors, the finish should be selected according to the actual use conditions. A highly polished slab may be visually attractive, but slip resistance must be reviewed separately for wet entrances, bathrooms and other locations requiring additional traction.
Polished countertops require a consistent edge finish. Exposed bullnose, eased or chamfered profiles should be established on the fabrication drawing, particularly when adjacent sections must align across a kitchen installation.
Black Galaxy Granite Tiles, Kitchen Countertops and Project Applications
Black Galaxy slabs can be converted into several finished stone products. Their fabrication requirements differ by application: a kitchen island needs coordinated openings and edge profiles, while floor tiles require consistent thickness, joint planning and installation suitability.
| Hakemus | Tuotemuoto | Specification Consideration |
|---|---|---|
| Apartment Kitchen Islands | Large polished slab or assembled countertop sections | Usable slab width, sink and hob cutouts, support and edge detail |
| Kitchen Worktops | Custom cut-to-size countertop lengths | Cabinet layout, joint position, backsplash and appliance clearances |
| Kylpyhuoneen turhamaisuus Topit | Polished stone tops with specified basin openings | Sink fitting, faucet holes, moisture-resistant support and edge finish |
| Sisätilojen lattiat | Black Galaxy Granite Tiles, including 300×600mm and 600×600mm reference formats | Tile calibration, floor flatness, traffic and slip requirements |
| Wall Cladding | Slab panels or cut-to-size decorative pieces | Panel weight, fixing method, joints and supporting structure |
Other tile sizes, including approximately 457×457mm and 800×800mm, are also listed as product-format references. The final cutting schedule must be checked against the selected slab dimensions and the project’s finished-size tolerances.
Black Galaxy Granite Apartment Kitchen Island Design
The supplied kitchen island application image illustrates Black Galaxy’s use as a dark countertop surface in an apartment interior. A large, relatively uninterrupted island top allows the fine golden inclusions to remain visible across the working surface.
Black Galaxy can be paired with white or light-grey cabinetry to create a pronounced contrast between the countertop and the cabinet fronts. Natural oak, walnut and other warm wood finishes produce a different result, allowing the bronze-gold mineral flecks to relate visually to the surrounding joinery.
For an island with a waterfall end, the countertop drawing should identify whether the edge uses a mitered joint, how the adjoining faces will align and where support is required. A continuous-looking waterfall detail should not be assumed to be carved from a single stone piece.
The image is used as a design application reference. Specific installation dimensions, project ownership and completion details are not asserted without supporting project records.
Fabrication Considerations for Black Galaxy Granite Countertops
Fabricating a kitchen countertop from a Black Galaxy Slab requires the cutting layout to accommodate the sink, hob and any appliance openings. Narrow stone sections around a cutout can become vulnerable during lifting, so reinforcement and support details must be resolved before fabrication.
The black polished surface also makes certain finishing defects easier to notice. Scratches, unpolished edge sections and inconsistent joint polishing can interrupt the otherwise uniform dark appearance. Worktop sections that meet at a visible joint should be reviewed together before dispatch.
Edge details can include eased, chamfered and rounded profiles. The selected edge affects how the visible thickness is perceived and whether the surface is comfortable to use at seating areas or island corners.
For installations with an undermount sink, the finished stone around the opening, support method and exposed internal edge must be suitable for the basin and the local cabinet arrangement. The stone should not be treated as a substitute for adequate cabinet or structural support.
Black Galaxy Granite Slab Inspection and Export Packing
The acceptance requirements for Black Galaxy should reflect its dark polished appearance and the finished product format. Surface consistency, correct dimensions and edge condition are relevant, while the sparkle pattern must be judged as natural material variation rather than an artificial printed design.
| Slab Surface Review | Inspect the black background, natural golden-fleck distribution, polish consistency, visible pits, filled areas and any scratches or chips. Confirm the selected material grade and acceptable visual range. |
| Dimensional Inspection | Check slab dimensions and thickness against the order. For cut-to-size products, verify finished lengths, widths, edge profiles, cutouts and tolerances against the approved drawings. |
| Finished-Product Coordination | Lay out connected countertop pieces or tiles where necessary to check joints, surface alignment and the appearance of adjacent stone sections. |
| Packing and Identification | Separate polished faces, protect finished corners, support slabs in suitable transport frames and identify fabricated pieces according to the approved project schedule. |
Cleaning and Maintaining Polished Black Galaxy Granite
A polished Black Galaxy countertop should be cleaned with a soft cloth or sponge and a mild, stone-compatible cleaner. Spills should be wiped away promptly, particularly around food preparation areas, sink edges and countertop joints.
Black Galaxy is a dense stone, but the sealing requirement should be established from the actual material and finish rather than a fixed calendar schedule. A suitable sealer may be used when required by the stone’s absorption behavior and the fabricator’s maintenance guidance.
Avoid abrasive pads that can mark a polished surface. Although the stone is commonly used for kitchens, trivets are still advisable for very hot cookware, and chopping directly on the countertop is not recommended.
For floor tiles, routine cleaning should remove grit before it is dragged across the surface. Entrance mats and a cleaning program suited to the traffic level can reduce abrasive wear. Wet-area floors also require a separately verified slip-resistant finish.
Frequently Asked Questions About Black Galaxy Granite Slabs
What is Black Galaxy Granite Slab?
Black Galaxy Granite Slab is a natural Indian stone with a deep black background and small bronze-gold reflective mineral flecks. It is commercially classified as granite and commonly processed into polished kitchen countertops, floor tiles, bathroom vanity tops and wall panels.
Where does Black Galaxy Granite come from?
Black Galaxy Granite is associated with quarries in Andhra Pradesh, India, particularly the Chimakurthy stone-producing area. The source of a specific production lot should be confirmed through its material documentation when required by the project.
What is the difference between Black Galaxy Granite and Star Galaxy Granite?
Black Galaxy Granite and Star Galaxy Granite are commonly used commercial names for the same dark Indian stone family with reflective golden mineral flecks. Individual slabs can still vary in sparkle density, background tone and grain distribution.
Are Black Galaxy Granite 18mm slabs suitable for kitchen countertops?
18mm Black Galaxy Granite slabs can be used for appropriately designed kitchen countertops when the cabinet support, countertop span, cutouts and edge details are suitable. Projects may alternatively specify 20mm or 30mm material according to their structural and fabrication requirements.
Can Black Galaxy Granite Slabs be cut into floor tiles?
Yes. Black Galaxy Granite Slabs can be processed into cut-to-size floor tiles, including common reference formats such as 300×600mm and 600×600mm. Tile thickness, finish, slip suitability and installation tolerances must match the project requirements.
How should polished Black Galaxy Granite countertops be maintained?
Use a soft cloth and a mild stone-compatible cleaner, remove spills promptly and avoid abrasive pads. Sealing should follow the requirements of the selected stone and finish rather than an assumed fixed interval.
Black Galaxy Granite Compared with Four Natural Granite Slabs
These granite choices differ primarily in their background color, reflective mineral character and suitability for specific interior palettes. The comparison places products in rows so the full table fits within the page.
| Tuote | Stone Appearance | Visual Character | Paras käyttökohteet |
|---|---|---|---|
| Black Galaxy Granite Slab | Deep black with bronze-gold reflective flecks | Fine star-like sparkle | Kitchen islands, polished countertops and black feature surfaces |
| Magic Rainbow -graniittilevy | Multicolored mineral movement with contrasting bands | Strong directional pattern | Decorative walls, expressive countertops and feature islands |
| Blue Labradorite Granite | Dark stone with blue reflective mineral areas | Pronounced blue iridescence | Statement countertops, islands and decorative stone panels |
| Blue Pearl Graniitti | Blue-grey background with reflective crystalline grains | Pearlescent blue sparkle | Kitchen countertops and interiors requiring blue-grey stone |
| Shanxi musta graniitti | More uniform black surface with minimal visible color movement | Restrained monochrome finish | Minimalist black countertops, floors and architectural details |
Recommended Natural Granite Slabs
Magic Rainbow -graniittilevy
Multicolored granite with pronounced natural mineral movement for decorative interiors.
Blue Labradorite Granite
Dark natural stone with blue iridescent mineral areas for feature countertops.
Blue Pearl Graniitti
Blue-grey granite with reflective crystalline grains for counters and interiors.
Shanxi musta graniitti
Uniform black granite for minimalist countertops and architectural finishes.
Request Black Galaxy Granite Slabs for Kitchen and Interior Projects
For a Black Galaxy Granite Slab quotation, provide the required slab thickness, approximate dimensions, surface finish and intended fabrication format. Kitchen countertop projects should include island measurements, cabinet plans, sink and appliance openings, and the preferred edge treatment. For tile orders, identify the finished tile size, application and required finish so the cutting schedule can be checked against the selected material.
| Request Black Galaxy Granite Slab Quote | View Granite Slabs |
