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Violet |
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| Violet |
| Physical, mechanical and technological specifications : |
| Hardness |
(Mohs) |
: |
4 |
| Unit Volume Weight |
(gr/cm3) |
: |
2,73 |
| Density |
(gr/cm3) |
: |
2,75 |
| Water absorption at atmospheric pressure |
by weight (%) |
: |
0,1 |
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by volume (%) |
: |
0,2 |
| Water absorption at boiling water |
by weight (%) |
: |
0,1 |
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by volume (%) |
: |
0,2 |
| Porosity |
(%) |
: |
0,2 |
| Compressive strength |
(Kg/cm2) |
: |
701 |
| Compressive strength after freezing |
(Kg/cm2) |
: |
590 |
| Strength to blow |
(Kg/cm2) |
: |
23 |
| Strength to bending |
(Kg/cm2) |
: |
151 |
| Modulus of Elasticity |
(Kg/cm2) |
: |
5,9x10³ |
| Ratio of fullness |
(%) |
: |
99,3 |
| Degree of pores |
(%) |
: |
0,7 |
| Average Abrasion Loss |
(cm3/50 cm2) |
: |
25,4 |
| Average Tensile Strength |
(Kg/cm2) |
: |
39 |
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| Chemical analysis |
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| CaO.................................................................................................... |
49,53 |
| MgO.................................................................................................... |
0,21 |
| SiO2.................................................................................................... |
0,24 |
| A12O3................................................................................................. |
- |
| Fe2O3................................................................................................. |
- |
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