Yellow Travertine
Petrographical Properties:

The sample consist of amorphous ,crypto-microcrystalline calcite minerals and presents a highly interstitial appearance.In addition to these several micro fossil fillings with oval lines were encountered.Interstitial structure within the rock are generally filled with mesocrystalline calcite.In some interstices kidney-like ,conchoidal mesocrystalline calcite fillings are observed and they show zoned growth one after the other.Conchoidal growth zones are seperated from each other with this brown opacities.The cause of the opacities and the yellow surface stainings observed in some cilcite minerals is probably solution which precipitates limonite.These solutions have also given a dirty appearance to the mineral.



Physical, Mechanical and Technological Specifications
Hardness (mohs) 3,5
Unit Volume by weight (gr/cm3) 2,41
Density (gr/cm3) 2,73
Water Absortion at Atmospheric Pressure (by weight %) 2,6
(by volume %) 6,3
Water Absorption at Boiling Water (by weight %) 4,0
(by volume %) 9,5
Prosity (%) 6,3
Compressive Strenght (Kgf/cm2) 500
Compresssive Strenght After Freezing (Kgf/cm2) 520
Strenght to Blow (Kgf/cm/cm3) 3
Strenght to bending (Kgf/cm2) 127
Modules of Elasticity (Kgf/cm2) 28,46x104
Ratio of Fullness (%) 88,3
Degree of Pores (%) 11,7
Average Abrasion Strenght (cm3/50 cm2) 54,59
Average Tensile Strenght (Kgf/cm2) 386,26
     
Chemical Analysis %
SiO2 0,10
Fe2O3 2,15
CaO 53,95
MgO 0,20
 
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