Marble

Navigation

Property

pro1 pro2 pro3

General Description

Marble is a metamorphic stone. It was at one time a limestone or dolomite that has been structurally altered by recrystallization. Pure marble is white. The abstract variety of colors, mottling, clouds, swirls, shadings, streaks and veining are derived from the accessory minerals that were present in the limestone or dolomite.

GROUP Metamorphic
Common Rock-Forming Mineral Group Calcareous
Composition

Calcite, dolomite or a combination of both and accessory minerals acting as coloring agents. Veining minerals range from calcite, quartz and a variety of other minerals.

CONSTITUENT %
CaO 53.70 – 55.90
CO2 42.17 – 53.54
MgO 0.06 – 0.92
Al2O3 0.06 – 0.94
Fe2O3 0.005 – 0.42

[1]
Hardness Hard
Porosity % 0.06 – 2.3m [5]
Density 2.4-2.8 gr/cm3 [5]
Abrasion Resistance 0.25-2.9 mm
Compressive Strength 62.46 – 122.64 MN/ m2 [1]
Absorption % 0.1 – 0.6
Coefficient of Linear Expansion 2.7-5.1/ºC-1 x 10-6 [5]
Specific Gravity 2.64-23.73 kg/m3 [1]
Impact Strength 21.20-60 cm
Weight 2651.55-2731.90 kg/m3 [1]
Weathering Characteristics Moisture sensitive as a rule. All polished marble will lose their polish in exterior applications.
Tendencies Absorbs oils and other liquids, Easily scratched, Acid sensitive
Colors Every color is possible due to the variability of accessory minerals.
Finishes Polished, Honed
Thickness 10-15 mm for internal wall; up to 20mm for floor.