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Almandine garnet is a chemically inert non-metallic mineral that is quite
common in the natural environment. It is found in most river and beach sands
and is known for its hardness and durability. The high levels of hardness
and toughness make almandine garnet ideal for many abrasive applications.
Its high specific gravity as well as its chemical and abrasive resistance
makes almandine garnet ideal for filtration. Almandine garnet is also a popular
semi-precious gem and is the birth stone for January.
| Packaging options |
Packaging is available to customer
specifications. Standard packaging includes 25 kg and 1 metric ton bags. |
| Grain Shape |
Blocky, sub-angular to sub-rounded grains
(uncrushed) |
| Water insolubility |
Insoluble under standard conditions
(20%, distilled water) |
| Hardness |
7.5 - 8.0 per Moh's scale |
| Acid solubility |
<1% |
| Chloride content |
<25 ppm |
| Available sizes |
#8/12 - #120 mesh (U.S. standard screen) |
| Specific gravity |
4.0 - 4.1 |
| Free silica content |
<0.5% |
| Color |
Deep red, reddish brown |
Typical chemical analysis
| silicon dioxide |
SiO2 |
35% (non-crystalline) |
| ferric oxide |
Fe2O3 |
33% |
| aluminum oxide |
Al2O3 |
23% |
| magnesium oxide |
MgO |
7% |
| calcium oxide |
CaO |
1% |
| manganese oxide |
MnO |
1% |
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© 2000 Medias Industrial Products Sdn Bhd
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