 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Granite: Azul Bahia
 |
 |
Name |
: "Azul Bahia Granite" |
Occurence |
: South of Bahia - Brazil |
Description |
: Navy blue rock , showing white spots; compact, equigranular, medium grained. Polished section shows slight color variations and few diaclases. |
Petrographic Analyses |
: Intersertal texture. Plaglioclase is the dominant feldpar. Microline is less abundant. Sodalite occpies intertices within Feldspar laths . Sometimes incipient alteration to carbonate is observed. Cancrinite occurs as alteration product at the plaglioclase borders. |
| MINERAL COMPOSITION | |
Plagioclase |
: 30% |
Microcline |
: 20% |
Sodalite |
: 45 - 50% |
Cancrinite & Others |
|
Classification |
: Sodalitic-Syeniteo |
| PHYSICAL AND MECHANICAL FEATURES | |
* Phisical Indexes |
|
- Dry Density |
: 2.545 kg/m3 |
- Apparent Porosity |
: 0,10 % |
- Water Absorption |
: 0,04 % |
* Amsler wear Value |
: 0,75 mm |
* Compression Breaking Load |
: 169,2 Mpa |
* Compression Breaking Load after Freezing |
: 183,6 Mpa |
* Impact Strenght Test |
: 0,46 m |
* Static Deformability Modulos |
: 58,07 Gpa |
* Thermal Linear Expansion Coeficient |
: 10,7 mm/mºCx10-3 |
* Bending Test |
: 16,64 Mpa |
Recommended use |
: Interior and exterior facing |