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Fluorspar Lumps

Q: Why do some buyers prefer lumps instead of powder?

Lumps are often easier to handle, create less dust, and fit charging systems that are designed for coarse feed.

Q: Do lumps still need impurity control?

Yes. Even coarse material needs the right CaF2 band and impurity profile for the end process.

Q: Can lumps be used in non-ferrous metallurgy?

Yes, when the charging method and process chemistry are aligned with coarse material.

High-end and normal fluorspar lumps for steelmaking, non-ferrous smelting, ferroalloys, and other flux applications, with published size bands and impurity options.

High-end90% / 93% / 95% / 97% / 98%

Normal75% / 80% / 85%

Size1-10 mm to >120 mm

Page detailsFluorspar Lumps for Steelmaking and Flux Applications | FluoricaPublished CaF2 ranges, impurity limits, and size bands for fluorspar lumps used in steelmaking, ferroalloys, and non-ferrous metallurgy.

UpdatedJul 14, 2026Canonical: /products/fluorspar-lumps

What this grade is for

High-end and normal fluorspar lumps for steelmaking, non-ferrous smelting, ferroalloys, and other flux applications, with published size bands and impurity options.

The source page treats grade and size distribution as separate controls, so buyers should quote chemistry and particle band together.

Steelmaking and non-ferrous fluxing where coarse feed is preferred.
Ferroalloy and metallurgical charging applications.
Buyers who want a natural or processed lump form with published grade and size bands.

Published specification guidance

Use the table below as a buyer-facing starting point. Final chemistry, moisture, particle size, packaging, and inspection terms should still be confirmed in the sales contract.

Published lump grade ranges
Grade	CaF2	Additional note
High-end	90% / 93% / 95% / 97% / 98%	SiO2 <10%, <7%, <5%, <3%, <2%; CaCO3 <1%; S <0.05%; P <0.01%.
Normal	85% / 80% / 75%	SiO2 <13%, <16%, <20%; CaCO3 <3%, <5%, <5%; S <0.1%.
Impurity options	Low sulphur / low phosphorus	Ask for the exact limit if the melt or reaction is sensitive.

Buyer checklist

Before you issue an RFQ, make the request precise enough for the plant and the logistics team to quote the same thing.

Confirm whether the buyer wants natural or processed lumps.
State the target CaF2 band and the maximum impurity levels.
Explain the furnace or smelting process so the seller can quote the right lump behavior.
Include size range, inspection terms, and destination port in the RFQ.

Common questions

Why do some buyers prefer lumps instead of powder?