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Definition of limestone
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of limestone is as below...
Limestone
(n.) A rock
consisting
chiefly
of
calcium
carbonate
or
carbonate
of lime. It
sometimes
contains
also
magnesium
carbonate,
and is then
called
magnesian
or
dolomitic
limestone.
Crystalline
limestone
is
called
marble..
Lern More About Limestone
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Trenton Period
::
Trenton
period
() A
subdivision
in the lower
Silurian
system
of
America;
-- so named from
Trenton
Falls,
in New York. The rocks are
mostly
limestones,
and the
period
is
divided
into the
Trenton,
Utica,
and
Cincinnati
epochs.
See the Chart of
Geology..
Lime
::
Lime (n.) Oxide of
calcium;
the white or gray,
caustic
substance,
usually
called
quicklime,
obtained
by
calcining
limestone
or
shells,
the heat
driving
off
carbon
dioxide
and
leaving
lime. It
develops
great heat when
treated
with
water,
forming
slacked
lime, and is an
essential
ingredient
of
cement,
plastering,
mortar,
etc..
Cement
::
Cement
(n.) A kind of
calcined
limestone,
or a
calcined
mixture
of clay and lime, for
making
mortar
which will
harden
under
water..
Effloresce
::
Effloresce
(v. i.) To
become
covered
with a
whitish
crust or light
crystallization,
from a slow
chemical
change
between
some of the
ingredients
of the
matter
covered
and an acid
proceeding
commonly
from an
external
source;
as, the walls of
limestone
caverns
sometimes
effloresce
with
nitrate
of
calcium
in
consequence
of the
action
in
consequence
of
nitric
acid
formed
in the
atmosphere..
Cliff Limestone
::
Cliff
limestone
() A
series
of
limestone
strata
found in Ohio and
farther
west,
presenting
bluffs
along the
rivers
and
valleys,
formerly
supposed
to be of one
formation,
but now known to be
partly
Silurian
and
partly
Devonian..
Septarium
::
Septarium
(n.) A
flattened
concretionary
nodule,
usually
of
limestone,
intersected
within
by
cracks
which are often
filled
with
calcite,
barite,
or other
minerals..
Kiln
::
Kiln (n.) A large stove or oven; a
furnace
of brick or
stone,
or a
heated
chamber,
for the
purpose
of
hardening,
burning,
or
drying
anything;
as, a kiln for
baking
or
hardening
earthen
vessels;
a kiln for
drying
grain,
meal,
lumber,
etc.; a kiln for
calcining
limestone..
Chalk
::
Chalk (n.) A soft,
earthy
substance,
of a
white,
grayish,
or
yellowish
white
color,
consisting
of
calcium
carbonate,
and
having
the same
composition
as
common
limestone..
Stalactite
::
Stalactite
(n.) A
pendent
cone or
cylinder
of
calcium
carbonate
resembling
an
icicle
in form and mode of
attachment.
Stalactites
are found
depending
from the roof or sides of
caverns,
and are
produced
by
deposition
from
waters
which have
percolated
through,
and
partially
dissolved,
the
overlying
limestone
rocks..
Ferrocalcite
::
Ferrocalcite
(n.)
Limestone
containing
a large
percentage
of iron
carbonate,
and hence
turning
brown on
exposure..
Coralline
::
Coralline
(a.)
Composed
of
corallines;
as,
coralline
limestone..
Lithography
::
Lithography
(n.) The art or
process
of
putting
designs
or
writing,
with a
greasy
material,
on
stone,
and of
producing
printed
impressions
therefrom.
The
process
depends,
in the main, upon the
antipathy
between
grease
and
water,
which
prevents
a
printing
ink
containing
oil from
adhering
to
wetted
parts of the stone not
covered
by the
design.
See
Lithographic
limestone,
under
Lithographic..
Carbonate
::
Carbonate
(n.) A salt or
carbonic
acid, as in
limestone,
some forms of lead ore, etc..
Granuliform
::
Granuliform
(a.)
Having
a
granular
structure;
granular;
as,
granuliform
limestone..
Nitrocalcite
::
Nitrocalcite
(n.)
Nitrate
of
calcium,
a
substance
having
a
grayish
white
color,
occuring
in
efforescences
on old
walls,
and in
limestone
caves,
especially
where there
exists
decaying
animal
matter..
Dolomite
::
Dolomite
(n.) A
mineral
consisting
of the
carbonate
of lime and
magnesia
in
varying
proportions.
It
occurs
in
distinct
crystals,
and in
extensive
beds as a
compact
limestone,
often
crystalline
granular,
either
white or
clouded.
It
includes
much of the
common
white
marble.
Also
called
bitter
spar..
Purbeck Beds
::
Purbeck
beds () The
strata
of the
Purbeck
stone,
or
Purbeck
limestone,
belonging
to the
Oolitic
group.
See the Chart of
Geology..
Eozoonal
::
Eozoonal
(a.)
Pertaining
to the
eozoon;
containing
eozoons;
as,
eozoonal
limestone..
Stock
::
Stock (n.) An
irregular
metalliferous
mass
filling
a large
cavity
in a rock
formation,
as a stock of lead ore
deposited
in
limestone..
Calcite
::
Calcite
(n.)
Calcium
carbonate,
or
carbonate
of lime. It is
rhombohedral
in its
crystallization,
and thus
distinguished
from
aragonite.
It
includes
common
limestone,
chalk,
and
marble.
Called
also
calc-spar
and
calcareous
spar..
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