Every shipment includes a full Certificate of Analysis. Buyers receive verified lab data — not just a grade label — before committing to any order.
All minerals we supply are analyzed by accredited third-party laboratories and documented with full Certificates of Analysis (COA). Buyers receive complete compositional data — including oxide percentages and key physical parameters — before finalizing any order.
Every product lot is tested at an accredited third-party laboratory using standard analytical methods (including WDXRF for elemental composition). Test results are fully documented and traceable to each shipment.
A full Certificate of Analysis is issued with every shipment. For gypsum, this covers 15 parameters. For dolomite and kaolin, WDXRF elemental composition is provided. Buyers can request the COA at inquiry stage — before placing any order.
No vague market-rate quotes. We provide itemised FOB pricing — product, packaging (Bigbag), and logistics — so procurement teams can build landed-cost models with real numbers from the first conversation.
The data below reflects typical lot results. Exact composition varies by shipment. A full COA for your specific order is available on request before any purchase commitment.
Analytical method: ICP & ASTM C 471M-20Aᵉ¹. 15-parameter full COA available on request.
| No. | Parameter | Result | Unit |
|---|---|---|---|
| 1 | CaSO₄·2H₂O (Gypsum) | 95.89 | % |
| 2 | Combined Water | 20.07 | % |
| 3 | SO₃ | 45.20 | % |
| 4 | Fe₂O₃ | 0.016 | % |
| 5 | Al₂O₃ | 0.021 | % |
| 6 | SiO₂ | 0.26 | % |
| 7 | Na₂O | 0.006 | % |
| 8 | K₂O | 0.011 | % |
| 9 | MgO | 0.043 | % |
| 10 | pH | 8.50 | — |
| 11 | Cl | <10 | ppm |
| 12 | Insoluble Matter | 0.62 | % |
| 13 | Moisture | 0.45 | % |
| 14 | Whiteness | 87.80 | — |
| 15 | CaSO₄ (Anhydrite) | 1.03 | % |
Typical specification. Exact composition may vary by lot. Full COA available upon request.
Or submit an inquiry form — we respond within 1 business day.
Analytical method: WDXRF (Wavelength Dispersive X-Ray Fluorescence). Full elemental analysis available on request.
| No. | Compound | Concentration (%) |
|---|---|---|
| 1 | CaO | 34.196 |
| 2 | MgO | 21.638 |
| 3 | SiO₂ | 0.360 |
| 4 | Al₂O₃ | 0.384 |
| 5 | Fe₂O₃ | 0.126 |
Typical specification. Exact composition may vary by lot. Full COA available upon request.
Or submit an inquiry form — we respond within 1 business day.
Analytical method: WDXRF (Wavelength Dispersive X-Ray Fluorescence). Contact us to discuss your required grade and composition.
| No. | Compound | Concentration (%) |
|---|---|---|
| 1 | SiO₂ | 22.966 |
| 2 | TiO₂ | 0.283 |
| 3 | Al₂O₃ | 5.681 |
| 4 | T-Fe₂O₃ | 1.237 |
| 5 | MgO | 5.878 |
| 6 | CaO | 24.435 |
| 7 | K₂O | 2.316 |
Typical specification. Exact composition may vary by lot. Full COA available upon request.
Or submit an inquiry form — we respond within 1 business day.
Contact us with your product, grade, and quantity. We'll send the relevant COA and a quote — usually within 1 business day.
Request a Quote