Cosmic Black

Stoneza — Anantay Exports Pvt. Ltd. — is a quarry-direct manufacturer, processor and exporter of Natural sandstone, 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. 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.

Monsoon Black is the quarry and trade name; Cosmic Black is our name for it. The spec code is STZ-ST-COSM. 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.

The natural face with the arrises tumbled off, so pieces sit together without sharp edges and the wall reads as hand-laid rather than machine-cut. The face is left as quarried; the piece is then tumbled to soften the edges. Backs are calibrated and sides hand-cut. Wet grip: high — suits wet areas. Hand-laid character with the laying speed of a modular system.

Wash down as needed. Seal for exterior use on porous stone.

Size: Length 4"–15" · Width 4"–15" (random). Thickness: 20–22 MM. Supplied crate pack — 220 sqft/pack at approximately 5 kg per sq ft. Custom sizing is available on project orders — send the setting-out and we will cut to it.

Yes. At 1.5-2.5% water absorption and 2300 kg/m³ density it is exterior grade. Use a breathable impregnating sealer outdoors, never a film-forming one, and expect the stone to darken when wet — normal, and it reverses as it dries.

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.

Impregnating sealer recommended 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.