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Heritage Science

Table 1 Mineralogical composition obtained by XRD

From: The quantification of physico-mechanical properties and durability of onyx-travertines from Santa Ana de los Ríos de Cuenca, Ecuador

Test Specimen

Composition (%)

Calcite

(CaCO3)

Magnesite

(MgCO3)

Aragonite

(CaCO3)

Siderite

(FeCO3)

Strontianite

(SrCO3)

Anhydrite

(CaSO4)

Manganite

(MnO(OH))

Iron oxide

PT

95.02

–

–

1.54

–

1.49

0.54

1.41

YT

65.50

9.69

23.91

–

 < 0.5

 < 0.5

–

 < 0.5

GT

99.58

–

–

–

–

–

–

 < 0.5

WT

76.57

22.57

–

–

–

0.86

–

–

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