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PHYSICAL-MECHANICAL CHARACTERISTICS

Compression breaking load: 150 MPa

Compression breaking load after freezing: 138 MPa

Imbibition coefficient % (by weight):3.05

Ultimate tensile strength: 15 MPa

Impaci test; min. fall height(cm): 98

Thermal linear expansion coefficient(10-6/° C): 11.25

Frictional wear test - relative : 0.76

Weight per unit of volume (kN/m3): 26.9

Elasticity modul: tangente Et: 36880/secante Es: 23886

Knoop microhardness : 2729 MPa

Poisson coefficient

tangente t:0,273

secante t:0,122

Speed waves ultrasonic: 2509 (m/s

CHEMICAL ANALYSIS

In chemical composition % weight of the ox of the elements

chemicals that make up the rock.

SiO2- 67,2

TiO2 - 0,4

Al2O3 -18,1

Fe2O3 -1,2

FeO -2

MgO -0.8

CaO -3.8

Na2O -3,5

K2O -3,0

Mineralogical composition % by volume of minerals components of the rock.

Quartz - 30

Plagioclase - 30

Ortoclasio - 25

Biotite - 10

Muscovite - 3

Accessories: Tourmaline,Zircon, Apatite - 2