The best natural abrasives are Garnet Sand. Garnet Sand also known as garnet abrasive is naturally occurring mineral abrasive with high hardness & excellent abrasive properties. It is derived from the mineral garnet, which is typically found in certain igneous rocks, metamorphic rocks, and beach sands.
| Element | Results |
|---|---|
| SiO2 | 33-38% |
| Al2O3 | 21-22% |
| Fe2O3 | 31-38% |
| CaO | 1.5-2% |
| MgO | 07-08% |
| MnO | 0.5% Approx. |
| TiO2 | ˂1.5% |
| Minerals | Results |
|---|---|
| Garnet | 97-98% |
| Ilmenite | 01-02% |
| Others | ˂00.10% |
| Parameter | Results |
|---|---|
| Color | Reddish Brown |
| Appearance | Crystalline, Sharp, Angular |
| Melting Point | ≥ 1200 °C |
| Conductivity | Max 15 mS/m |
| Specific Gravity | 3.9-4.3 |
| Bulk Density | 2.1-2.7 g/cm3 |
| Hardness | Min 7.5 Mohs |
| Moisture | Max 0.25% |
| Toxic Substance | None |
| Suspended Solid | Max 1500 mg/l |
| Odor | No Odor |
| Gypsum | Nil |
| Metal Content | Traces |
| PH of Aquarius Medium | 6.9-7 |
| Solubility in Water & Acid | Insoluble |
| Soluble Salt | ˂100 PPM |
| Chloride | ˂50 PPM |
| Lead (P2O5) | ˂ 0.05% |
| Application | Grade |
|---|---|
| Water Filtration | A+ (12x20)/A (12x25) |
| Oil Filtration | B (20x40)/C (30x50/60) |
| Sand Blasting | A+ (12x20)/A (12x25)/ B (20x40)/C (30x50/60)/ D+ (40x60) |
| Water Jet | D+ (40x60)/D (50-80)/E (120) |
| Size/Grade | Size/Grade | A+ | A | B | C | D+ | D | E |
|---|---|---|---|---|---|---|---|---|
| Mesh | Micron | 1700-850 | 1400-600 | 850-425 | 600-250 | 425-180 | 300-180 | 180-125 |
| Retained | Retained | % | % | % | % | % | % | % |
| 12 | 1700 | <03 | 0 | |||||
| 14 | 1400 | 10-21 | <03 | |||||
| 18 | 1000 | 70-85 | 10-25 | 0 | ||||
| 20 | 850 | 0-7 | 30-45 | <03 | 0 | |||
| 25 | 710 | <03 | 30-50 | 2-10 | <01 | |||
| 30 | 600 | 02-10 | 30-45 | 02-05 | 0 | |||
| 40 | 425 | <03 | 40-60 | 05-20 | <0.20 | 0 | ||
| 45 | 355 | <07 | 15-40 | - | <02 | |||
| 50 | 300 | 45-60 | 20-35 | 04-12 | <0.10 | |||
| 60 | 250 | 00-05 | 40-55 | 20-35 | <0.30 | |||
| 70 | 212 | <01 | - | 30-45 | 02-05 | |||
| 80 | 180 | 15-30 | 10-25 | 10-25 | ||||
| 100 | 150 | 00-05 | 4-10 | 15-50 | ||||
| 120 | 125 | <01 | <05 | 5-10 | ||||
| 140 | 106 | 02-04 | ||||||
| 170 | 090 | <0.50 |