SEAMWHITE
KAOLIN
to Micron.
Pharmaceutical-grade kaolin and ball clay from a 55-million-year Late Cretaceous deposit. Processed to your d50 specification. Quoted before you scroll.
Why This
Deposit.
Formed during the Late Cretaceous hydrothermal alteration of granitic parent rock, the Seam deposit sits within a chemically stable, low-iron matrix — the geological condition that produces kaolin clean enough for USP-grade pharmaceutical excipients without secondary bleaching.
"Fifty years of proven reserve means your procurement team signs one vendor and never revisits the decision."
Topographic Survey
LiDAR and drone photogrammetry maps the overburden to centimetre precision before any cut is opened.
Selective Stripping
Hydraulic excavators remove overburden in benched lifts, stockpiling topsoil separately for reclamation.
Blunging & Degritting
Raw kaolin is slurried in water and passed through vibrating screens to remove coarse silica and mica.
Centrifugal Classification
Hydrocyclones and centrifuges fractionate the slurry to target particle-size distributions within ±0.3 µm.
From Pit
to Micron.
Four processing stages. Each one measurable, documented, and repeatable to within ±0.3 µm on d50. Select a stage to see specification data.
Crude / Run-of-Mine
Need a custom specification?
Our process engineers can blend fractions or adjust classification to hit d10/d50/d90 targets specified in your incoming QC procedure.
Every Batch
Documented.
Certificate of Analysis issued per production run. Third-party verification by SGS Minerals. Full chain-of-custody from pit face to despatch bay.
From Procurement Teams Running Continuous Production
Three industries. One consistent answer: batch-to-batch repeatability that removes supplier risk from the production equation.
"Seam's air-floated grade consistently delivers d50 of 3.8 µm batch to batch. We've eliminated incoming QC hold time entirely."
"The calcined grade meets our 14 g/m² coating weight specification with zero rejects across 18 months of continuous supply."
"Particle-size distribution is tighter than any supplier we've tested. The Certificate of Analysis matches actual incoming assay every time."
Delivered Where
You Operate.
| Region | Lead Time | Preferred Mode | Min. Order | Packaging |
|---|---|---|---|---|
| Europe | 5–8 weeks | Road + Rail | 25 tonne | Bulk, 1t FIBC, 25kg bag |
| North America | 8–12 weeks | Container (FCL/LCL) | 50 tonne | Bulk, 1t FIBC, 25kg bag |
| Asia Pacific | 10–16 weeks | Container (FCL) | 100 tonne | Bulk, 1t FIBC |
| Middle East | 8–14 weeks | Container (FCL) | 50 tonne | 1t FIBC, 25kg bag |
Land Returns to
What It Was.
Every hectare extracted is bonded for reclamation before the first cut is made. Topsoil is stockpiled separately, overburden profiled, and native species re-established to a biodiversity index exceeding pre-extraction baseline within seven years.
Ready to Qualify
Your Specification?
We ship 25 kg qualification samples to your lab within the lead time shown for your region. Sample includes Certificate of Analysis, particle-size distribution curve, and whiteness index data.
Download Full Mineral Data Sheet
Complete specification tables, SEM imagery, and full processing capability matrix. Gated behind a business email to ensure technical buyers receive the right document version.