Tandur Blue Limestone: The Underrated Alternative to Kota Stone

Tandur stone lives permanently in Kota’s shadow. Kota is the name international buyers know, and Tandur is what they discover afterwards — usually when they are looking for something with a slightly different character or a different price position.

Both are Indian limestones, both are dense and durable, and for many applications either would work. But they are not the same stone and the differences are worth understanding before you specify one.

What Tandur Blue limestone is

Tandur limestone is quarried around Tandur in Telangana. It is a fine-grained, dense limestone available in blue-grey, yellow and grey tones. Tandur Blue is the grey-blue variant, with a subtle, close-grained appearance and often faint natural mottling.

Its most distinctive characteristic is how flat and even it looks. Where Kota Blue has a slightly greenish cast and more visible variation, Tandur Blue reads as calmer and more uniform — closer in appearance to a fine-grained bluestone.

Tandur Blue versus Kota Blue

Colour. Kota Blue has a greenish-blue-grey cast. Tandur Blue is a cooler, greyer blue with less green in it. Side by side the difference is clear; described in words it sounds smaller than it is.

Consistency. Tandur is generally the more uniform of the two, with less visible mottling and tonal variation across an area. For a large continuous floor where you want the surface to disappear, this is an advantage.

Surface. Tandur splits and finishes to a notably smooth, fine-grained surface. It takes a honed finish particularly well.

Availability and formats. Kota is available in a wider range of formats and thicknesses through more supply channels, simply because it has been exported in higher volume for longer. Tandur is available but with less depth of supply.

Application. Broadly interchangeable for flooring, cladding and paving. The choice is usually aesthetic.

Neither is better. If your scheme wants a calm, even, cool grey-blue surface, Tandur. If it wants a little more life and natural variation, or if you need format flexibility, Kota.

Finishes

Natural / rough split — textured, high slip resistance. For external paving, steps and pool surrounds.

Honed — smooth matte. Tandur’s fine grain makes this a particularly good finish on this stone. The most exported specification.

Polished — low satin sheen. Interior use only, and it will not reach the gloss of marble.

Brushed / leather — textured contemporary finish, hides marks well, increasingly requested for residential work.

Sandblasted — even matte texture with good grip, used for external areas where a uniform appearance is wanted.

For wet and external areas, natural, brushed or sandblasted. Not polished.

Applications

  • Interior flooring, residential and commercial
  • Wall cladding, internal and external
  • Courtyards, terraces and garden paving
  • Stair treads and risers
  • Pool surrounds, in a textured finish
  • Window sills, copings and thresholds

Where to avoid it: kitchen worktops. It is a limestone and it will etch under citrus and vinegar. Granite or quartzite is the correct material there.

Technical properties

Typical published ranges for Tandur limestone. Substitute your own batch test data where available.

  • Water absorption: low for a limestone, typically well under 1%
  • Good abrasion resistance and compressive strength
  • Frost resistant in most climates, though for hard freeze-thaw regions confirm absorption figures for the specific batch
  • Etches under acids, as all limestones do

Sizes, thickness and calibration

Standard tile formats: 60×60, 60×30, 40×40 and 30×30 cm, with cut-to-size available.

Thickness typically 20 to 30 mm for flooring, heavier for external paving and steps.

Specify calibrated material — machined to consistent thickness — for export. The installation saving over uncalibrated material is substantial in any market with meaningful labour costs.

Maintenance

Seal at installation with a penetrating impregnating sealer. Clean with pH-neutral products; acidic cleaners will etch the surface. Wipe acidic spills promptly on honed and polished finishes.

Externally, expect gradual weathering and slight tonal softening. Most specifiers regard this as desirable.

Export details

Limestone ships under HS code 2521.00 from Nhava Sheva or Kandla. Minimum order 20 metric tonnes, approximately one 20ft container.

Processing 15 to 25 working days from order confirmation. Sea transit: 10 to 14 days to the Gulf, 18 to 24 days to UK and Europe, 21 to 30 days to the USA and Canada, 16 to 22 days to Australia.

Material ships in export-grade wooden crates or on strapped pallets with edge protection. All timber ISPM15 heat-treated and marked

 

Send your finish, format and quantity — quote within 24 hours, quarry-direct. Request a quote

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.
What is the difference between Tandur Blue and Kota Blue limestone?

Kota Blue has a greenish-blue-grey cast with more visible natural variation. Tandur Blue is a cooler, greyer blue with a finer grain and a more uniform appearance. Their physical properties are broadly comparable.

Yes, in a natural, brushed or sandblasted finish. Its low water absorption suits courtyards, terraces and pool surrounds. Avoid polished finishes outdoors.

No. As a limestone it etches under citrus and vinegar. Granite or quartzite is the appropriate material for kitchen surfaces.

20 to 25 mm for interior flooring, 30 mm for external paving and heavier loading. Specify calibrated material for faster installation.

Honed. Its fine, even grain takes a honed finish particularly well, which is why honed is the most exported specification for this stone.