SPACES Sept issue 2017

INTERIOR
METAMORPHIC ROCKS
Metamorphic rocks are formed under
the surface of the earth from the
metamorphosis (change) that occurs
due to intense heat and pressure
(squeezing). The rocks that result from
these processes often have ribbon like
layers and may have shiny crystals,
formed by minerals growing slowly
over time, on their surface. Examples
of this rock type include gneiss and
marble.
SOIL AND ITS COMPOSITION
Soil can exhibit a wide range of
colors; gray, black, white, red, brown,
yellow and sometimes green too.
This distribution and development
of color is a result of chemical and
biological weathering. Redox reaction
plays an important role here. The
color concentration, mottled patterns
etc. Is produced from environmental
conditions and weathering effects
which results in gradual uniform color
changes. Moreover the presence of
water also affects soil color by affecting
the oxidation rate. Yellow or red soil
indicated the presence of oxidized
ferric iron oxides. Dark brown or black
color soils indicate that the soil has high
organic matter content. Manganese
oxide causes a black color, glauconite
makes the soil look green, and calcite
makes the soil appear white.
MARBLE
Prized for its classic elegance, marble
flooring has been around since ancient
times. It’s instantly recognizable for its
soft grain patterns and creamy colors
that range from white to red, green,
and black. It’s often polished to a
high sheen that shows off its subtle
beauty. Polished marble is slippery
when wet and isn’t the best choice
for kitchens and baths. Honed marble
has more surface texture and is a
good alternative, but doesn’t have the
dynamic color of polished marble.
Marble is one of nature’s softer rocks
and prone to scratching and staining,
so professional sealing after installation
is recommended.
56 / SPACES SEPTEMBER 2017