Marble

Marble like any other building material has its strengths and limitations. It is important to
judge the performance characteristics of different stones individually and not assume that
all marbles are alike.

Commercially "Marble" has become a , which is used o classify a wide rage of
stones used for decorative purposes that are capable of taking a polish. Those stones that
are grouped into this commercial classification are geological marbles and limestone's
that can take a polish, also dolomites, travertine's, onyx and serpentines (green marbles).

Marble is a metamorphic stone. It was at one time a limestone or dolomite that has been structurally altered by re crystallization. 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.

Some marbles are more moisture sensitive than others, Creme Marfil, Perlino Rosata, Bottiocins, Breccias some Perlatos and Rosa Veronas, and some are extremely moisture sensitive, as a rule the red, black and green marbles. This color group of marbles may present problems such as warping, blistering,and spalling when installed with setting materials containing water. It is strongly recommended that the use of a water  free epoxy adhesive be used with black and green marbles. Marble used in the kitchen should be carefully evaluated due to its acid sensitivity. Treating marble with a water or oil repellent is highly recommended.

NOTATIONS

Honed...Polished

FINISHES

Every color is possible due to the variability of accessory minerals.

COLORS

Absorbs oils and other liquids...Easily scratched...Acid sensitive.

TENDENCIES

Moisture sensitive as a rule. All polished marble will lose their polish in exterior applications.

WEATHERING
CHARACTERISTICS

0.2 - 0.6

       ABSORPTION %

0.5 - 2.0

POROSITY %

3 - 5.5

MOHS' SCALE

Soft to Hard...Generally Soft to Medium

HARDNESS

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.

COMPOSITION

Calcareous

COMMON
ROCK-FORMING MINERAL GROUP

Metamorphic

Marble Stones, White, Red, Brown, Black, Raw Pieces and Sliced Polished Iran Origin Only.