Perlite. Perlite is a mineral of volcanic origin that due to its properties has the ability to expand at high temperatures.

Brand: PeatMoss

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Description

Perlite is a mineral of volcanic origin that due to its properties has the ability to expand at high temperatures. The water trapped inside the perlite particles expands the mineral when heated to the appropriate temperature, giving it lightness. Expanded perlite is a product with a pH close to neutrality and very low electrical conductivity. It is a very light product with high porosity that is used in mixtures of growing substrates that lightens and increases the aeration capacity of the substrate. Type A-13 expanded perlite is 3 to 5 mm grain size expanded perlite.