Black Galaxy Granite: Everything You Need to Know Before You Buy

The Most Popular Indian Sandstone Colours for UK & European GaOf all the granite varieties exported from India, none has achieved the global recognition of Black Galaxy. Walk into a stone showroom in London, visit a kitchen retailer in Sydney, or browse a stone importer’s catalogue in New York, and Black Galaxy granite is almost certain to be prominently featured. It is India’s most internationally celebrated granite — and arguably one of the most recognisable natural stones in the world.

Yet despite its fame, many buyers — including experienced stone professionals — have questions about Black Galaxy: Where exactly does it come from? Why do some samples look different from others? What separates genuine Black Galaxy from imitations? And how do you ensure you are getting the real thing?

At Nirvan Exports, we have supplied Black Galaxy granite to buyers in over 40 countries since 2006. Here is everything you genuinely need to know before you buy.

What is Black Galaxy Granite?

Black Galaxy granite is a specific Indian granite variety characterised by a deep jet-black background covered with brilliant golden-bronze mineral speckles called bronzite. These speckles — which range from fine pinpoints to larger flecks — catch light and create a dramatic star-field effect across the polished surface. In direct light, the speckles appear to glow. In natural light, they shift and sparkle as you move around them.

Geologically, Black Galaxy is an ultramafic rock (a chromite-bearing serpentinite, technically) rather than a true granite in the strictest geological sense. However, it has been commercially marketed and sold as granite for decades and is universally classified as granite in the stone trade. What matters commercially is its performance: it is harder than most true granites, has extremely low water absorption, and polishes to one of the most intensely lustrous surfaces of any natural stone.

Where is Black Galaxy Granite Quarried?

This is perhaps the most important fact about Black Galaxy that many buyers do not know: genuine Black Galaxy granite is quarried exclusively in one specific area — Ongole district (also known as Prakasam district) in Andhra Pradesh, India. The unique mineralogy that creates the gold-bronze bronzite speckle effect is found nowhere else on earth.

Any stone being sold as ‘Black Galaxy’ that does not originate from Ongole, Andhra Pradesh is not authentic Black Galaxy. Several imitation stones — particularly from China and other Indian regions — have been marketed under similar names. Genuine Black Galaxy from Nirvan Exports is sourced directly from Ongole quarries, with provenance documentation available upon request.

Quality Grades of Black Galaxy Granite

Not all Black Galaxy granite is the same. The stone is commercially graded based on the density and distribution of the golden speckles, the uniformity of the black background, and the absence of fissures or mineral inclusions.

Premium/Select Grade

Dense, evenly distributed golden speckles. Uniform jet-black background with minimal variation. No visible fissures or discolouration. Used for high-end kitchen countertops, feature walls, and luxury hospitality applications.

Commercial Grade

Moderate speckle distribution. Minor colour variation in the black background is acceptable. Occasional minor fissures (which are naturally occurring and structurally sound when properly sealed). Suitable for commercial flooring, external cladding, and large-format tile applications.

Galaxy Galaxy (Star Galaxy)

An ultra-premium sub-variety with extremely dense, fine speckle distribution giving an intense star-field effect. Rare and significantly more expensive than standard Black Galaxy. Reserved for the most prestigious countertop and feature wall applications.

Black Galaxy Granite: Applications and Specifications

Kitchen Countertops

Black Galaxy is one of the world’s most popular kitchen countertop stones. Its deep black background provides a dramatic contrast with light cabinetry, stainless steel appliances, and white or cream colour schemes. Specify at 20mm (standard) or 30mm (premium) thickness in polished finish. Black Galaxy has very low water absorption, making it highly stain-resistant and practical for kitchen environments.

Bathroom Surfaces

Black Galaxy bathroom vanity tops, floor tiles, and wall cladding create a luxurious, spa-like aesthetic. In polished format, the reflective surface maximises light in bathroom environments. In honed or leather finish, it provides a sophisticated matte alternative.

Commercial Flooring

Black Galaxy in 60×60cm or 60×30cm polished tiles creates premium commercial flooring with visual impact. It is widely specified for hotel lobbies, upscale retail spaces, corporate reception areas, and airport terminals globally.

Exterior Cladding

In flamed finish, Black Galaxy’s very low water absorption and frost resistance make it suitable for exterior facade cladding in most climates. The flamed surface reduces the visual intensity of the gold speckles but retains the dramatic black aesthetic.

FAQ's

frequently asked questions

Q What natural stones does Nirvan Exports supply?

A Nirvan Exports supplies five categories of natural stone: marble, granite, sandstone, slate, and limestone. Our marble range includes over 20 varieties such as Makrana White, Rainforest Green, Katni Beige, Fantasy Brown, and Spider Green. Our granite range includes Black Galaxy, Absolute Black, Colonial White, and 15+ additional varieties. We also supply Rajasthan sandstone in Buff, Pink, Teak, and Kandla Grey; natural slate tiles and slate veneer sheets; and limestone including Kota Stone, Fossil, Yellow, and Beige varieties.

A Our minimum order quantity (MOQ) for export is typically 20 metric tonnes per stone type, which equates to approximately one 20-foot container. However, we can accommodate smaller trial orders for new buyers — please contact us to discuss your specific requirements. For large projects requiring multiple containers or regular supply contracts, we offer priority processing and volume pricing.
A Nirvan Exports exports natural stone to over 40 countries worldwide. Our primary markets include the United States, United Kingdom, Germany, Australia, Russia, UAE, Saudi Arabia, France, Italy, Canada, New Zealand, and countries across Southeast Asia, the Middle East, and Africa. We are experienced in the import regulations, documentation requirements, and logistics of all our major export markets.
A Lead time from order confirmation to shipment is typically 15 to 25 working days, depending on the stone type, finish, and order volume. Once shipped from Nhava Sheva port (Mumbai), standard transit times are 18 to 25 days to European ports, 21 to 30 days to USA and Canada, and 12 to 18 days to the UAE and Middle East. We provide tracking information for all shipments.
A Yes. All Nirvan Exports orders can be customised to your project specifications. We supply stone in standard slab sizes (typically 240 x 120 cm), standard tile formats (60 x 60 cm, 60 x 30 cm, 30 x 30 cm), or fully bespoke dimensions cut to your requirements. Available finishes include polished, honed, brushed, sandblasted, flamed, leather, and natural split. Please provide your specifications when requesting a quote.
A Yes. We strongly encourage new buyers to request samples before placing a bulk order. Sample pieces (typically 10 x 10 cm or 20 x 20 cm) are available for most stone varieties in our range. Sample charges and shipping costs apply, which are refundable against your first order. To request samples, contact us with the stone variety, finish, and your delivery address.
A All Nirvan Exports shipments use export-grade wooden crates with foam padding, waterproof wrapping, and heavy-duty strapping. Marble slabs are packed back-to-back with foam separators to prevent surface damage in transit. Slate veneer sheets and fragile stone products receive individual protective wrapping. Our packaging complies with international maritime freight standards and is designed to withstand multi-port transshipment.
A Nirvan Exports is a natural stone supplier and exporter — not a stone manufacturer. Natural stone is quarried from the earth, not manufactured. We own and operate quarry partnerships in Udaipur, Rajasthan and work with established quarry owners across India’s major stone regions. We handle the full supply chain from quarry sourcing through to stone processing, quality control, packaging, and international export.
A Nirvan Exports provides a full set of export documentation with every shipment, including: commercial invoice, packing list, bill of lading, certificate of origin, phytosanitary certificate (where required), and quality inspection report. We are experienced with documentation requirements for all our major export markets including the USA, UK, EU countries, Australia, and the Middle East.
A To receive a quotation, contact Nirvan Exports with the following details: stone type and variety, quantity required (in metric tonnes or square metres), finish required, slab or tile format and size, and your delivery port or country. We respond to all enquiries within 48 hours with a detailed price quotation and, where relevant, availability of samples.
Is Black Galaxy granite from India genuine?

Genuine Black Galaxy granite is exclusively from Ongole district, Andhra Pradesh, India. There are no authentic deposits of this stone outside India. When buying, always request provenance documentation or ask your supplier to confirm the specific quarry origin.

Natural variation in the density and size of golden bronzite speckles is inherent in Black Galaxy granite — no two slabs are identical. The black background can also vary slightly from blue-black to warm-black depending on the specific quarry section. For large projects requiring consistent appearance, we recommend reviewing actual slab photos from the specific batch before ordering.

Black Galaxy has very low water absorption (typically 0.1–0.2%) and is naturally resistant to staining. However, we recommend applying a penetrating impregnator sealer annually for kitchen countertop use as a precautionary measure. For flooring applications, sealing is advisable particularly in commercial environments.

FOB pricing for Black Galaxy granite varies based on grade, slab size, and market conditions. As a rough guide, polished gangsaw slabs in commercial grade typically range from USD 30–60 per square metre FOB India. Select/premium grade commands a premium above this range. Contact Nirvan Exports for current pricing and availability.

Yes. Black Galaxy’s very low water absorption (0.1–0.2%) makes it highly frost-resistant, and it performs well in cold climates including Northern Europe, Canada, and Northern USA. For outdoor paving in cold climates, flamed or brushed finish is recommended for improved slip resistance.