What does mineral pumice cost today? Types, units, and why freight sets the price

Mineral pumice looks like the simplest line on a materials list: a light, porous volcanic stone that arrives by truck and goes into roof slope screeds, lightweight blocks, and lightweight concrete. But anyone who has bought pumice for a project knows "the pumice price" is not one number: the grain type, the source mine, the sale unit (cubic meter or ton), bulk versus bagged, and — above all — the distance from your city to the mine each move the final figure. This guide unpacks those variables one by one, so you know exactly what to ask for.

Pumice types: almond, lentil, pea, and sand grade

• Almond grade: coarse and light; the usual choice for roof slope screeds and floor lightening, since it fills the most volume with the least weight.
• Lentil grade: finer; the main feed for lightweight block and lightweight-aggregate concrete, and usually heavier than almond grade.
• Pea grade: mid-sized, between lentil and almond; used both in slope screeds and in lightweight concrete.
• Sand grade: fine particles; used in mortar, renders, and block mixes — the heaviest type.
• "Honeycomb" pumice: a market name for highly porous grains with a honeycomb-like surface; seen mostly in decor, landscaping, and drainage.

Each type has its own market and its own price, so "the pumice price" without a type is practically meaningless. If you're buying pumice to make blocks, it's worth checking the concrete wall-block price at the same time, to see whether casting on site beats buying ready-made blocks.

Qorveh, Bonab, and why the source mine matters

A large share of Iran's construction pumice comes from the Qorveh mines in Kurdistan, and Bonab in Azerbaijan is another well-known origin. The origin is not just a name on the waybill: color, porosity, bulk density, and the share of impurities (soil and fines) differ between mines, and those are what decide the quality of a slope screed or the strength of a block. That's why listings usually put the mine name next to the grain type — for example, you can see the Qorveh almond-pumice price on its own, with its source and date.

Cubic meter or ton? Bulk or bagged?

Pumice is sold sometimes by the cubic meter and sometimes by the ton, and the two don't convert simply: the weight of a cubic meter varies noticeably with grain type and moisture, and can be close to double between the lightest and heaviest grades. So the "price per ton" that looks cheaper is not necessarily the better buy — if the load is heavier (wetter, or carrying more impurities), you've effectively taken delivery of less volume. When comparing, bring every quote back to one unit and ask where and how the weight or volume is measured.

Buying in bulk by truck is more economical for large projects, but it needs unloading space and a stockpile area. For small jobs — say, the slope screed of a single unit — bagged pumice comes at a higher unit price but without the hauling hassle and waste; you can check the bagged mineral-pumice price separately and weigh it against bulk.

Why freight decides the final price

Relative to its weight and volume, pumice is a cheap good — so freight's share of the delivered price is bigger than for most other materials, and it grows the farther you are from the mine. That's why the pumice price in Tehran differs from the pumice price in Tabriz: Tabriz sits closer to the Azerbaijan mines, while Tehran's loads are hauled mostly from Qorveh. The freight rate itself moves with fuel, the working season, and whether the truck has a return load. So two quotes are only comparable when both are "delivered" prices for the same city; the ex-mine price is just the starting point of the calculation for the end buyer.

How to get today's delivered price for your city

• Specify the grain type (almond, lentil, pea, sand grade) and, where it matters, the source mine.
• Pin down the unit — cubic meter or ton — and ask where the weight or volume is measured.
• Ask for the price delivered to your city, not the ex-mine price; make freight explicit up front.
• Record the date and source of every quote; in this market, a price without a date can't be relied on.
• Check more than one seller, so an outlier price — cheap or expensive — gives itself away.

Price Finder turns this inquiry into seconds

Price Finder searches the product name — in your own words — across Torob, Digikala, Emalls, and Google at once, reads the live price off the seller's own site, uses AI to drop irrelevant results and outlier or stale prices, and shows the cheapest trustworthy current price with its source and date. On the mineral pumice price page you also get a day-by-day price chart to read the market's trend; and if pumice is just one line on a bigger materials list, the building materials price guide gives a fuller view of the rest.