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basalt, pure white marble, granite, bluestone, cement tile, pebble
Stone Name:
Grey - BlueStone
Origin:
Viet Nam
basalt, pure white marble, granite, bluestone, cement tile, pebble
| You can find Bluestone in a lot of varieties . Nowadays stones are imported from the whole of the World to Belgium and Europe . | |||||||||
| Bluestone is a limestone with a more or less sharply defined blue gray color characterized by the presence of a lot of crinoïds . Crinoïds are very small skeletons from sealilies . | |||||||||
| Bluestone contains +/- 96 % of CaCO3 , the dominated mineral in most of limestones . This stone contains a high part of fossilized fauna , sometimes visible on the surface | |||||||||
| Other names for this stone is : Blue limestone , Crinoïd limestone . | |||||||||
| We have to make a distinction between the different kinds of Bluestone coming from Asia . | |||||||||
| Specifically between the Asian Blue from Vietnam and the Jinin Stone from China . | |||||||||
| Even though both stones approach very much the Blue Stone from Belgium and even both are offered as "Blue Stone" , only the "Asian Blue" from Vietnam can have the predicate "blue stone". Indeed , the petrographic data from both materials ( Belgium and Vietnam ) match very well . The most important difference between both sorts is that the stone from Vietnam manifests more color tones than the Belgian one . The "Jinin Stone" from China is not a blue stone . It is a limestone with a very high grade of dolomite . | |||||||||
| Hereafter you find a comparison between the Belgian "Petit Granit" and the "Asian Blue" from Vietnam: | |||||||||
| Technical characteristics from the Belgian ‘ Petit Granit ‘ ( source WTCB TV 220 ) | |||||||||
| Petrographic data : sedimentary stone , limestone | |||||||||
| Apparent mass volume : 2.687 kg/m³ | |||||||||
| Porosity : 0,28 % in volume | |||||||||
| Resistance to the pression : 157,9 N/mm² | |||||||||
| Resistance to the flexion : 16,7 N/mm² | |||||||||
| Resistance to the usury ( Amsler ) : 2,87 mm/1000m | |||||||||
| Technical characteristics from the Vietnamese ‘ Asian Blue ‘ ( source WTCB testreport) | |||||||||
| Petrographic data : sedimentary limestone | |||||||||
| Apparent mass volume : 2.707,7 kg/m³ | |||||||||
| Porosity : 0,29 % in volume | |||||||||
| Resistance to the pression : 168,6 N/mm² | |||||||||
| Resistance to the flexion : 16 N/mm² | |||||||||
| Resistance to the usury ( Amsler ) : 2,35 mm/1000m | |||||||||
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