MARBLEWHITE
MARBLEWHITE
MARBLEWHITE® limestone products are high purity calcium carbonates characterized by high brightness and controlled particle size. These products are used in a variety of applications such as paints, polymers, caulks and putties, joint compound, rubber, and building products.
Consistent MARBLEWHITE limestone quality is assured by manufacturing process control, from the mining of the calcite ore to final packaging. All MARBLEWHITE products are manufactured from a high quality deposit of calcium carbonate located in Lucerne Valley, CA.
Grades Available:
- MW325
- MW350
- MW200
- MW195
- MW125
Properties
| Typical Properties | MW325 | MW350 | MW200 | MW195 | MW125 |
| Median Particle Size (Sedigraph 5100, microns) | 13.0 | 15.0 | 17.0 | 20.0 | 26.0 |
| Dry Brightness (Hunter Y, Rd Value) | 92 | 92 | 92 | 91 | 90 |
| Bulk Density (pounds/ft3) | 45.6 | 50.1 | 51.0 | 53 | 57.2 |
| Bulk Density (pounds/cc) | 0.73 | 0.80 | 0.82 | 0.85 | 0.92 |
| Tap Density (pounds/ft3) | 97.5 | 102.3 | 109.5 | 110 | 111.4 |
| Tap Density (pounds/cc) | 1.56 | 1.64 | 1.75 | 1.75 | 1.75 |
| Oil Absorption (grams/100 grams) | 12 | 12 | 11 | – | – |
| Specific Gravity | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
| Chemical Composition (typical) | Value |
| Calcium Carbonate (CaCO3) | 98.0% |
| Magnesium Carbonate (MgCO3) | 1.2% |
| Iron as (Fe2C3) | <0.1% |
| Moisture (% weight loss at 110°C) (H2O) | 0.2% |
