Grade specification sheet
PL-CAL Functional Filler
Oolitic aragonite classified to customer specification for polymer compounds, coatings and functional filler duty.
- 96.17% CaCO3, ASTM C 25
- 0.01% iron oxide, Fe2O3
- 2.93specific gravity
- 20–325U.S. mesh available
1Intended applications
- Polymer compounds and masterbatch
- PVC, polypropylene and silicone
- Coatings and surface treatments
- Specialty and functional fillers
Suitability for any particular process must be confirmed on a representative sample. Application rates and process performance are not specified by AragoCor.
2Particle size specification
| Grade | Sizing | Status | Classification range |
|---|---|---|---|
| PL-CAL | To customer specification | Customer specification required | Screened from the natural commercial gradation |
| Custom | 20–325 mesh | Customer specification required | Application-specific classification |
The full screen size specification for the natural commercial grade is given in TDS-OA-001, section 5.
3Relevant chemistry
| Component | Value | Unit | Method | Status |
|---|---|---|---|---|
| Calcium carbonate, CaCO3 | 96.17 | % by wt | ASTM C 25 | Representative analysis |
| Magnesium carbonate, MgCO3 | 0.24 | % by wt | ASTM C 25 | Representative analysis |
| Silica, SiO2 | < 0.01 | % by wt | ASTM C 25 | Representative analysis |
| Iron oxide, Fe2O3 | 0.01 | % by wt | ASTM C 25 | Representative analysis |
| Aluminium oxide, Al2O3 | 0.10 | % by wt | ASTM C 25 | Representative analysis |
| Strontium carbonate, SrCO3 | 1.43 | % by wt | ASTM C 25 | Representative analysis |
Analysis by Bowser-Morner, Inc. (AASHTO/ISO 17025), report 124914A. Full composition, including published deposit ranges, is given in TDS-OA-001.
4Physical characteristics
| Property | Value | Unit | Method | Status |
|---|---|---|---|---|
| Specific gravity | 2.93 | — | — | Representative analysis |
| Mohs hardness | 3.5–4 | Mohs | — | Published range |
| Surface area | > 1.7 | m2/g | Keck Lab | Representative analysis |
| Crystal system | Orthorhombic | — | XRD | Representative analysis |
| Zeta potential | −6.65 to −33.85 | mV | — | Published range |
| Moisture, as received | 5–10 | % | — | Published range |
5Why this grade
| Consideration | Basis |
|---|---|
| Crystal habit | The acicular aragonite habit has been reported to reinforce polymers more effectively than the rhombohedral calcite habit (Martínez Moya and Boluda Botella, 2021). |
| Surface charge | Negative zeta potential of −6.65 to −33.85 mV, against −1.01 to +11.55 mV for calcite. |
| Low colourants | Iron oxide at 0.01% and silica below 0.01% as measured. |
| Sizing | PL-CAL carries no published size band. Classification is available across the 20–325 mesh range and is set by the customer specification. |
Findings cited above are as reported by their authors and describe aragonite or carbonate minerals generally. They are not performance claims for any AragoCor grade. Product-specific data are given in this sheet and in TDS-OA-001; published literature is listed in REF-OA-001. Confirm performance on a representative sample for the intended process.
6Packaging options
| Format | Detail |
|---|---|
| Dry bulk | Vessel or bulk trailer |
| Super sack | Up to 3,000 lb |
| Bagged | From 1 lb |
| Distribution | Stockton, California |
7Information required for quotation
- Required particle sizing or target specification
- Estimated annual volume
- Delivery destination — city, ZIP or port
- Intended process or application
- Packaging format
- Any standard or specification to be met
8Quality documentation available
| Document | Content |
|---|---|
| Lot COA | Certificate of analysis issued for each dispatched lot |
| TDS-OA-001 | Master technical data sheet — full composition, properties and sizing |
| CERT-OA-001 | OMRI Listed® summary, product code avw-23214 |
| PDS-OA-001 | Manufacturing process — mechanical processing, no additives |
| SHS-OA-001 | Occupational safety summary |
| SDS | 16-section GHS Safety Data Sheet — consult before handling |
Send the grade, sizing, annual volume and destination and a sales engineer will respond with pricing and a freight estimate.
Values marked Representative analysis are measurements from an identified sample and describe material as tested. Values marked Published range are historical deposit ranges for dried, unwashed material. Neither constitutes a guaranteed minimum or maximum; a guaranteed specification is agreed in writing per contract and confirmed per lot by certificate of analysis. This information is offered for consideration, investigation and verification. It is not a warranty or representation of suitability for any particular application, nor permission to practise any patented invention.
Revision history
| Rev | Date | Change |
|---|---|---|
| A | Sep 2026 | First issue on approved values. |
AragoCor Minerals LLC · 2453 Grand Canal Blvd, Suite 200, Stockton, CA 95207