Fluorspar Lumps Are Not Defined by CaF2 Grade Alone
A fluorspar lumps inquiry often starts with just a few details: CaF2 80% minimum, 500 MT, CIF destination port. That is enough to start a conversation, but usually not enough to prepare a reliable quotation.
The missing details are not always complicated. Sometimes it is the maximum SiO2 content. Sometimes it is the lump size. Sometimes the buyer and supplier are working with different assumptions about packing or the condition of the material at delivery.
These differences matter because two offers described as 80% fluorspar lumps may not represent the same material or the same delivery conditions.
Common metallurgical fluorspar lump inquiries include 75%, 80% and 85% CaF2, although higher grades are also available in the market. But the CaF2 percentage is only one part of the specification.
A buyer whose plant requires SiO2 below 15% cannot automatically accept a quotation allowing 18%. The same applies to CaCO3, moisture and particle size. In practice, the difficult part of matching a fluorspar inquiry is sometimes not finding the requested CaF2 grade. It is finding material that meets the full set of limits at the same time.
For metallurgical applications, sulphur and phosphorus may also need specific maximum limits. Other elements should be included when the buyer's process requires them. The useful question is not simply whether a supplier has 80% fluorspar; it is whether the proposed material can meet the buyer's complete chemical and physical specification.
Hypothetical examples: two 80% CaF2 fluorspar lump offers can differ materially| Specification | Offer A | Offer B |
|---|
| CaF2 | 80% min | 80% min |
| SiO2 | 15% max | 18% max |
| CaCO3 | 3% max | 6% max |
| Size | 10-40 mm | 10-60 mm |
| Moisture | 1% max | 2% max |
Offer A and Offer B are hypothetical examples for comparison only. They do not represent actual supplier quotations.
What Does Fluorspar Lumps Mean in Terms of Size?
Different buyers may ask for 10-40 mm, 20-60 mm, 30-80 mm, 10-50 mm, or another plant-specific size range. All of these may be described commercially as fluorspar lumps.
There is no reason to assume that one size range will suit every steelmaking or smelting operation. The appropriate range depends on the plant's charging equipment, handling method and process requirements. A supplier may have suitable CaF2 chemistry but the wrong physical size.
That can lead to extra screening, additional handling or a material that the buyer cannot use as originally intended.
The Size at Loading May Not Be the Size at Arrival
Fluorspar lumps can break during handling, loading, container transport and unloading. The extent depends on the material and the way it is handled.
For example, material screened to 10-40 mm before loading may contain additional smaller particles after transport. That does not automatically mean the shipment is defective. The important question is what the buyer and supplier agreed to accept.
A size range without a defined tolerance can leave both sides with different expectations.
- Is the stated size range measured before loading or at destination?
- What percentage of undersize material or fines is acceptable?
- Is screening required before shipment?
- How and where will the size distribution be inspected?
Fines Are Not Always a Small Detail
When a buyer orders fluorspar lumps, the quantity of smaller particles can affect the practical value of the shipment. Some operations can tolerate a certain proportion of fines. Others have tighter requirements because of their charging or material-handling systems.
The word fines itself should also be defined. Does it mean below 10 mm, below 5 mm, or material passing a different screen size? Without an agreed definition, even a statement such as low fines is difficult to verify.
One supplier may quote screened lumps with a defined undersize allowance. Another may quote a broader size distribution at a lower price. The second offer may look more competitive per metric ton, but the buyer still needs to consider whether the entire delivered quantity is suitable for the intended use.
For lump purchases, a clear size distribution and fines tolerance can be just as important as the nominal CaF2 grade.
A COA Is Useful - But Which Material Does It Represent?
Most serious fluorspar buyers will request a Certificate of Analysis (COA). A COA can help confirm chemical composition, including CaF2, SiO2, CaCO3 and other required parameters. But receiving a COA is not the end of the quality discussion.
The next question is whether the document represents the material being offered. A report from an earlier production batch may provide useful background. It does not automatically prove that the next shipment will have the same composition.
For a specific order, buyers should understand whether the COA relates to the available stock, a previous shipment or the actual shipment lot; how the sample was collected and prepared; whether the analysis covers all required impurity limits; whether independent inspection is required; and how the final inspection results will be linked to the shipment.
A supplier may provide a genuine laboratory report and still need to confirm that the quoted cargo matches it. This is especially relevant when material is sourced from different mining areas, processed in separate batches or accumulated in stockpiles.
The goal is not to make the purchasing process unnecessarily complicated. It is to avoid treating a single laboratory result as a guarantee for every future shipment. See the fluorspar COA guide for the document fields buyers can connect to the shipment lot.
Packing and Shipment Terms Can Change the Comparison
Even when chemistry and particle size are agreed, two fluorspar lump quotations may still be based on different delivery conditions. For example, one quotation may assume one-ton jumbo bags, while another assumes a different packing method.
Container loading capacity can vary with packing, cargo density, container limits and logistics arrangements. A buyer should therefore confirm the commercial basis before comparing prices per metric ton.
For international buyers, the cheapest quoted price is not necessarily the lowest practical cost if it involves additional handling, repacking, screening or other requirements. A quotation becomes more meaningful when all suppliers are responding to the same specifications and commercial conditions.
- Packing method and approximate weight per bag.
- Quantity per container and total shipment quantity.
- Loading port and destination port.
- FOB, CFR or CIF quotation basis.
- Inspection responsibilities and required shipping documents.
- Expected shipment schedule.
One Acceptable Shipment Does Not Guarantee Long-Term Supply
A trial shipment can be an important first step in a new supply relationship. But there is a difference between having one acceptable lot available and being able to deliver similar material repeatedly.
A buyer planning regular purchases may need to understand how the supplier will maintain consistency across future shipments. For fluorspar lumps, that means looking beyond the current COA.
Not every supplier needs to own a mine or processing plant to provide a workable supply arrangement. What matters is whether the proposed sourcing route, quality control and delivery commitments can support the buyer's actual requirements.
For regular procurement, repeatability is often more valuable than an impressive specification achieved only once.
- Can the same CaF2 and impurity limits be maintained across repeat shipments?
- Is the required size range regularly available?
- Will the material come from the same source or processing route?
- How will each shipment lot be sampled and inspected?
- What happens if the next available batch differs from the approved trial material?
What Should a Fluorspar Lumps RFQ Include?
A good request for quotation does not need to be complicated. It needs to remove the assumptions that could lead to mismatched offers.
The important point is that the supplier should not have to guess what the buyer means by 80% fluorspar lumps. For a general preparation framework, use the fluorspar RFQ checklist.
Starting fields for a metallurgical fluorspar lumps RFQ| RFQ item | What to specify |
|---|
| Product | Fluorspar lumps / metallurgical fluorspar |
| Application | Steelmaking, ferroalloy production, non-ferrous smelting or other use |
| CaF2 | Minimum acceptable percentage |
| SiO2 | Maximum acceptable percentage |
| CaCO3 | Maximum acceptable percentage |
| Other impurities | S, P and any other plant-specific limits |
| Particle size | Required size range in mm |
| Fines | Definition and maximum acceptable proportion |
| Moisture | Maximum acceptable percentage |
| Quantity | Trial quantity, shipment quantity or monthly demand |
| Packing | Jumbo bags or another agreed method |
| Destination | Port and required Incoterm |
| Quality documents | COA, sampling requirements and inspection arrangements |
Final Thought: Compare the Material, Not Just the Price
Fluorspar lumps may look like a straightforward mineral product. But a workable purchase involves more than agreeing on CaF2 content and price per metric ton.
The impurity limits must fit the application. The size range must suit the buyer's operation. Fines and moisture need an agreed basis. The COA should relate to the material being supplied. And for regular orders, the buyer needs confidence that the specification can be repeated.
None of these checks is particularly unusual in industrial mineral trading. They are simply the details that make the difference between a quotation that looks acceptable and a shipment that actually meets the buyer's requirements.
Looking for Fluorspar Lumps?
Global Fluorspar (FLUORICA) focuses on specification-based fluorspar sourcing and buyer requirement coordination.
If you are reviewing fluorspar lumps for steelmaking, ferroalloys or other metallurgical applications, share your target CaF2 grade, impurity limits, particle size, quantity and destination port. We can help review the requirements and discuss potential sourcing options, subject to availability and specification confirmation.
View our Fluorspar Lumps product specifications or contact Global Fluorspar to discuss your inquiry.
