Lava Black Flame

Stoneza — Anantay Exports Pvt. Ltd. — is a quarry-direct manufacturer, processor and exporter of Volcanic basalt, operating from Bhilwara, Rajasthan since 1992. We operate quarries at Bijolia, Kota and Asind alongside verified direct quarry networks across India, processing and calibrating every order through our in-house factories in Bhilwara with zero middle trader markups. We supply pan-India and export worldwide.

Send the quantity, the finish and thickness you need, and the delivery location. We come back with a firm quarry-direct quotation and a confirmed lead time. Thickness and finish options are confirmed at quotation stage. Because we quarry and process ourselves, the quotation comes from the works rather than through a trader — and we would rather quote against a real drawing than hand you an indicative range that changes later.

Basalt is the quarry and trade name; Lava Black is our name for it. The spec code is STZ-CO-LAVA-FLAM. Quote the spec code on a BOQ rather than either name — the same stone is sold under several names across India, which is exactly how substitution happens on site after a specification is approved.

Flame-torched so the surface fractures to a coarse, open texture. The highest-grip finish available and the most robust under traffic. An oxy-fuel torch is passed across the face; the sudden heat fractures the surface crystals and spalls them away, leaving an open riven texture. It works best on dense crystalline stone. Wet grip: high — suits wet areas. The specification where vehicles cross. Nothing here grips better or takes more abuse.

Sweep and wash. Effectively maintenance-free. The open texture holds dust and hides it entirely.

Size: 100 | 200 × 100 MM. Thickness: 20 | 30 | 40 | 50 MM. Supplied loose per project requirement. Custom sizing is available on project orders — send the setting-out and we will cut to it.

Yes. At <0.5% water absorption and 2900 kg/m³ density it is exterior grade. At under 1% absorption it needs no sealer and handles monsoon and wet areas without difficulty.

Yes. We export worldwide from Bhilwara with container loading, export packing and documentation handled in-house. Minimum order is project-based rather than a fixed count. For bulk and wholesale enquiries, container quantities and repeat programmes, send the schedule and we will quote FOB or CIF against it.

Yes, and we would rather you did. Ask for a wet sample as well as a dry one — every stone darkens when wet, some dramatically, and it is the one thing a photograph cannot show you.

Lava Black is volcanic basalt. Measured: water absorption

Optional matt sealer Use a breathable impregnating sealer, never a film-forming one. A film traps moisture inside the stone, and in Indian conditions it eventually clouds and lifts, at which point it has to be stripped. An impregnating sealer sits in the pores and lets the stone dry out. Reapply at the manufacturer’s interval, typically every few years on an exposed elevation and less often on a sheltered one.