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TRIMEX
U.S.A., Inc.
Granite,
Marble & Slate |
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PRODUCTS
Granite:
Highly resistant and attractive rock known as
porphyry, hard and tough, and therefore gaining
widespread use as a construction stone. The average
density of granite is 2.75 g/cm3. The word granite
comes from the Latin “granum”, a grain,
in reference to the coarse-grained structure of
such a crystalline rock. |
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Marble:
Marble is a metamorphic rock resulting from metamorphism
of sedimentary carbonate rocks, either limestone
or dolomite rock, or metamorphism of older marble.
This metamorphic process causes a complete re-crystallization
of the original rock into an interlocking mosaic
of calcite, aragonite and/or dolomite crystals.
The temperatures and pressures necessary to form
marble usually destroy any fossils and sedimentary
textures present in the original rock. |
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Slate:
Fine-grained, foliated, homogeneous metamorphic
rock derived from an original shale-type sedimentary
rock composed of clay or volcanic ash through low
grade regional metamorphism. The result is a foliated
rock in which the foliation may not correspond to
the original sedimentary layering. Slate occurs
in a variety of colors even from a single locality.
Slate is not to be confused with shale, from which
it may be formed, or schist. |
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Travertine:
A sedimentary rock, it is a natural chemical precipitate
of carbonate minerals; typically aragonite, but
often re-crystallized to, or primarily, calcite.
The rock typically remains quite porous with numerous
cavities. |
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| 1075
W. Sam Houston Parkway N., Suite 200, Houston, Texas 77043.
U.S.A. Phone: 713-932-6803 Fax: 713-932-8037 E- mail: trimex@trimexusa.com |
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