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Perlite is an
amorphous volcanic gl**** that has a
relatively high
water content,
typically formed by the
hydration of obsidian. It
occurs naturally and...
- or the
roots may be
mechanically supported by an
inert medium such as
perlite, gravel, or
other substrates.
Despite inert media,
roots can
cause changes...
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include a
Cretaceous welded tuff and a
partially devitrified Ordovician perlite. This
transformation of
obsidian is
accelerated by the
presence of water...
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sometimes refer to
similar units made from
lightweight materials such as
perlite, wood, and
mineral wool,
typically used for wall and
ceiling applications...
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often in
close ****ociation with or
embedded in, gray
perlite. The
spherules occur as
cores within perlite m****es that
typically exhibit texture of concentrically...
- Segments: 60,000 m3 "Tohid tunnel". www.
perlite-co.com.
Archived from the
original on 2008-12-07. "Tohid tunnel". www.
perlite-co.com.
Archived from the original...
- hollow,
called microballoons or cenospheres, or non-hollow, for
example perlite. In this context, "syntactic"
means "put together." The
presence of hollow...
- A
small herb
garden employing coir
mixed with
perlite. The
soaking hose
provides water and some nutrients....
-
vegetable gardening it is
sometimes used as a soil conditioner,
because like
perlite, vermiculite, and
expanded clay, it
retains water and nutrients, while...
-
technical requirements. Some
vermiculite exfoliators blend with lower-cost
perlite also.
Vermiculite exfoliators have an
international trade ****ociation called...
