Antimony Ore – High-Grade Stibnite Lumps – Afghanistan
Antimony
Main metal: Antimony (Sb) in high-grade stibnite lump ore, with minor associated lead
Typical Sb grade (commercial lumps): ~58–69% Sb, verified by independent laboratories in Pakistan and China
Impurity profile: Very low Pb in some lots (Pb often below 0.1%) and moderate As (~0.3% in one ICP-AES assay), suitable for most smelter specifications
Material form: Hand-selected, hand-sized stibnite/antimony lumps from Afghan deposits, prepared for direct smelter feed
Laboratories referenced: Qualitest Laboratory Services (Karachi, Pakistan) and an independent ICP-AES laboratory in China
Laboratory Information
Qualitest Laboratory Services (Pvt) Limited
Laboratory: Qualitest Laboratory Services (Pvt) Limited, Karachi, Pakistan
Certificate: T.C. No. 438893, Lab Regn. No. 465671
Date: 05-12-2024 (receipt 19-11-2024)
Sample description: “ANTIMONY (LUMPS)” – Sample-A
Sample form: Hand-sized stibnite/antimony lumps
Summary
This certificate represents a very high-grade antimony lump sample.
The lab reports Antimony as Sb = 68.72%, with no other elements listed, indicating that the focus of this test was to confirm Sb content in hand-sorted lumps.
Lab Result
Chemical Composition
| Element | Symbol | Unit | Value (approx.) |
|---|---|---|---|
| Antimony | Sb | % | 68.72 |
Other notes
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Under the table, one sentence such as: “Other elements were not reported on this certificate; this assay focuses on Sb grade for the lump sample.”
Economic Values
Main economic metal
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Grade: 68.72% Sb is in the upper range for commercial stibnite lump ore, allowing high-value shipments at relatively low tonnage.
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Sorting: Such grades are consistent with hand-sorted, visually high-grade ore, suitable for small trial cargos and premium contracts.
Market & Application
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Suitable as direct smelter feed for antimony metal / antimony trioxide production.
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High Sb grade supports long-term offtake where buyers want consistent, high-grade feed from Afghanistan.
From the Mine
Laboratory Information
Qualitest Laboratory Services (Pvt) Limited
Laboratory: Qualitest Laboratory Services (Pvt) Limited, Karachi, Pakistan
Certificate: T.C. No. 431577, Lab Regn. No. 474267
Date: 20-08-2024 (receipt 17-08-2024)
Sample description: “MINERAL (LUMPS)” – Sample No. 3/B
Sample form: Stibnite/antimony mineral lumps
Summary
This assay shows high-grade antimony with very low lead, ideal for buyers who watch Pb closely in their specifications.
The certificate reports:
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Antimony as Sb = 58.38%
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Lead as Pb < 0.02%
Lab Result
Chemical Composition
| Element | Symbol | Unit | Value (approx.) |
|---|---|---|---|
| Antimony | Sb | % | 68.72 |
| Lead | Pb | % | <0.02 |
Other notes
-
Under the table, one sentence such as: “Other elements were not reported on this certificate; this assay focuses on Sb grade for the lump sample.”
Economic Values
Main economic metal
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Sb grade is comfortably in the high-grade band for antimony ores.
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Pb <0.02% means almost no lead penalty at smelters that are sensitive to Pb in antimony concentrates.
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This type of lot can support premium pricing compared with mixed Sb–Pb ores.
Market & Application
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Attractive for antimony trioxide / flame-retardant producers who need high Sb and low Pb.
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Suitable for battery alloys, specialised alloys and chemicals where Pb limits are strict.
From the Mine
Laboratory Information
MTC China
Laboratory: Independent Chinese ICP-AES laboratory
Report date: 2022-10-12 (sample received 2022-10-09)
Sample name: “Ore” (raw mineral) – coarse / cribbled material
Method: ICP-AES multi-element analysis
Summary
This report provides a multi-element scan of a high-grade antimony ore sample.
Key points:
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Sb is again around 68%, confirming the high-grade nature of the lumps.
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Most other elements are below 0.2%, except arsenic, which is reported at around 0.33%, and a small amount of lead.
Lab Result
Chemical Composition
| Element | Symbol | Unit | Value (approx.) |
|---|---|---|---|
| Antimony | Sb | % | 68.28 |
| Arsenic | As | % | 0.33 |
| Lead | Pb | % | ~0.05 |
| Aluminum | Al | % | 0.13 |
| Calcium | Ca | % | 0.14 |
| Other | % | <0.01–0.02 |
Other notes
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These values show a medium- to high-grade zinc ore with modest impurities.
Economic Values
Main economic metal
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Confirms consistency of high Sb grade (~68%) in material tested outside Pakistan.
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As ~0.33% is within the range many smelters can handle, especially when blended.
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Very low Pb again supports marketing this ore as “low-lead stibnite”, favourable for certain customers.
Market & Application
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Useful for buyers who require multi-element data before approving a new origin.
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Shows that Afghan antimony lumps can meet international quality expectations, with verifiable assays from different countries.
From the Mine
Laboratory Information
MTC China
Laboratory: SGS Pakistan (Chemical & Environmental Lab, Karachi)
Work order / file: PKS2552506 – Report File No. 0000070579
Date of report: 18 June 2025 Samples: 1
Product description: Antimony ore
Method summary: Acid digestion, titrimetric determination of Sb (Scheme code SB_SB_TIT)
Note: Sample was not drawn by SGS; it was provided by the client, so representativeness of the shipment is the client’s responsibility.
Summary
This certificate gives an independent titrimetric determination of antimony content in a bulk ore sample.
The analysis focuses only on Sb and reports a single, quantitative result for antimony grade, without a full multi-element impurity list. It is therefore ideal as a confirmation of Sb grade for a specific lot, to be read together with your more detailed multi-element assays.
Lab Result
Chemical Composition
| Element | Symbol | Unit | Value (approx.) |
|---|---|---|---|
| Antimony | Sb | % | 38.10 |
Other notes
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Acid digestion titrimetric method, as per SGS Pakistan SB_SB_TIT scheme; no other elements were requested in this test.
Economic Values
Main economic metal
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A grade of 38.10% Sb sits in the commercial range for antimony ores, below your hand-sorted 58–69% lumps but still clearly ore, not waste.
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This type of material is suitable as run-of-mine or crushed ore for blending with higher-grade shipments, or as feed for buyers who prefer medium-grade Sb ore at larger tonnages.
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Because the report does not list impurities (Pb, As, etc.), any commercial offer based on this result should be supported by additional multi-element assays when required by the buyer.
Market & Application
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Best described as medium-grade antimony ore (≈38% Sb), complementary to your high-grade lump portfolio.
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Useful for customers who want volume cargoes at a moderate grade, or who plan to blend with higher-grade stibnite to hit their target Sb specification.
From the Mine
Disclaimer
Note: The above results refer to a specific laboratory sample (HA-Lab-No-15). Production material will be supplied according to agreed specifications based on multi-sample assays and contract terms.
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