|
Physical Characteristics |
Mineral Composition (Warranted Limit) |
|
Bulk density........ 140-150 lbs/ft3
Specific gravity.... 4.1
Hardness (Mohs).. 7.50-8.50
Melting point........ 1,250°C
Particle shape...... Sub-rounded to sub-angular
Reactivity............ Inert |
Garnet (Almandite)............ +97.0% Ilmenite............................ <2.0% Zircon............................... <0.2%
Quartz .............................. <0.1%
Others ............................. <0.25% | |
|
Sizing - Typical % Retained |
Average Chemical Composition (wt %) |
|
|
Grade |
|
U.S. Mesh |
30x60 |
80 Mesh |
100 Mesh |
|
35 |
5 |
|
|
|
40 |
11 |
|
|
|
50 |
44 |
9 |
|
|
60 |
26 |
42 |
|
|
70 |
11 |
31 |
5 |
|
80 |
3 |
16 |
50 |
|
100 |
|
2 |
35 |
|
120 |
|
|
8 |
|
140 |
|
|
2 | |
SiO2................................. 36%
Al2O3............................... 20%
FeO.................................. 30%
Fe2O3............................... 2%
TiO2.................................. 2%
MnO.................................. 1%
CaO.................................. 2%
MgO.................................. 6% | |
| Recommended Blasting Conditions |
Other Characteristics |
Nozzle pressure ................. 90+ psi
Material flow ...................... 400-600 lbs/hr
Nozzle size ........................ #6 or larger
Work distance ................... 18-24 inches | |
Conductivity..0-15ms/m (max 25 ms/m)
Radioactivity..Not detectable above background
Moisture Absorption..Non-hydroscopic
Total Chlorides..10-15 ppm (max 25 ppm)
Free Iron..Less than 0.01%
Copper.. Less than 0.01%
Other Heavy Metals.. Less than 0.01% |
| Barton garnet
is certified by the California Air Resources Board for dry unconfined blasting.
Barton garnet meets all current EPA, NIOSH and OSHA chemical limits and
is on the Qualified Products List for U.S. Navy specification MIL-A-22262B(SH). |
