Looking for Stones Suppliers?
Let us help you find the right suppliers!
Free, Easy, Simple way to find Suppliers.
formed from limestone with heat and pressure over years in the earth's
crust. These pressure or forces cause the limestone to change in
texture and makeup. The process is called recrystallization.
Fossilized materials in the limestone, along with its original
carbonate minerals, recrystallize and form large, coarse grains of
Impurities present in the limestone during the recrystallization
period affect the mineral composition of the marble which is formed.
At relatively low temperatures, silica impurities in the carbonate
minerals form masses of chert or crystals of quartz. At higher
temperatures, the silica reacts with the carbonates to produce
diopside and forsterite. At a very high temperatures, rarer calcium
minerals, such as larnite, monticellite, and rankinite, forms in the
marble. If water is present, serpentine, talc, and certain other
hydrous minerals may be produced. The presence of iron, alumina, and
silica may result in the formation of hematite and magnetite.
The minerals that result from impurities give marble a wide variety
of colors. The purest calcite marble is white in colour. Marble
containing hematite are reddish in color. Marble that has limonite is
yellow, and marble with serpentine is green in colour.
Marble does not split easily into sheets of equal size and must be
mined with care. The rock may shatter if explosives are used. Blocks
of marble are mined with channeling machines, which cut grooves and
holes in the rock. Miners outline a block of marble with rows of
grooves and holes. They then drive wedges into the openings and
separate the block from the surrounding rock. The blocks are cut with
saws to the desired shape and size.
Physical Properties of Marble
Physically, these are recrystallized, Hard, Compact, fine to very
fine grained metamorphosed rocks capable of taking shining polish.
4 on Moh's Scale
to 2.7 Kg/cm3
(except Rainforest Green/Brown with 2-3%)
Chemical Properties of Marble
Chemically, they are crystalline rocks composed predominantly of
calcite, dolomite or serpentine minerals. The other minor constituents
vary from origin to origin.
(varies with variety)
On Ignition (LOI)
Uses of Marble
Marble has always been highly valued for its beauty, strength, and
resistance to fire and erosion. The ancient Iranian & Greeks were
good user of marble in their buildings and statues. The Italian artist
Michelangelo used marble from Carrara, Italy, in a number of
sculptures. Marble from Tennessee was used in parts of the National
Gallery of Art in Washington, D.C. The Lincoln Memorial, also in
Washington, was built of marble from Alabama, Colorado, and Georgia.
Very pure calcite marble is used for most statues. They are
translucent. Large blocks of colored marble are used for columns,
floors, and other parts of buildings. Smaller pieces of marble are
crushed or finely ground and used as abrasives in soaps and other such
products. Crushed or ground marble is also used in paving roads and in
manufacturing roofing materials and soil treatment products.
Textures of Marbles
Marbles show variety of textures on account of existing minerals &
re-crystallization patterns. Texture depends upon form, size,
uniformity of grain arrangements. Marbles can be classified on the
basis of the following factors :-
Calcite Marble - Mostly CaCo3
Dolomite Marble - Having > 40% MgCo3
Magnesium Marble - MgCo3
between 5 to 40%
Serpentine Marble - remobilised marble due to the effect of
Thermodynamic metamorphic wherein serpentine is prominent
Onyx Marble - Lime carbonate deposition on account of cold water
Impurities in Marble
The following are the major mineral impurities in marble:
The following are the major chemical impurities in marble:
On account of the mineral composition of marble the colour variations
Ocurrances of Marble
El Monte Coto
Masaron Ki Obri, Rishabhdeo (Kesariyaji), Udaipur, Rajasthan
Nai Parbati, Amet, Dist. Rajsamand, Rajasthan
Manpura, Dhariyawad, Dist. Udaipur
Sidhavatam, Kadapa Dist., Andhra Pradesh
Umpavally, Koraput Dist., Orissa
Buchan in Victoria, Bathurst/Orange in N.S.W., Ulan in Queensland
Palisandro marble quarry 45 km south-east of Karibib
Still Searching for Suppliers?
Let us help you find the right suppliers!
and receive quotes from genuine suppliers!