Perlite is a naturally occurring siliceous volcanic rock that expands up to 20 times its original volume when heated above 8000-9000°C. It is mostly composed of silica (about 70-75%) along with aluminum oxide and oxides of sodium, potassium, iron, magnesium, and calcium. Perlite has a variety of uses including in gardening, construction materials, and filtration due to its expansion properties when heated.

1. Perlite
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3. Perlite
is naturally occurring
siliceous amorphic
volcanic rock. But unlike
other volcanic glasses, if
heated them above a point
(8000-9000 C), they expand
up to 20 times of its
original volume.

4. As an amorphic volcanic
glass, perlite is mostly
made of silica or SiO2
(about 70-75%).
Other than there is a
mixture of Aluminum
Oxide or Al2O3, and
Oxides of Sodium,
Potassium, Iron,
Magnesium, and Calcium,
and moisture.

17. Data in thousand metric tons unless otherwise stated

20. Roof top
Gardens

25. Database offer:
https://www.primaryinfo.com/industry/perlite.htm
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