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perlite - screened and partially dried perlite pellets and popped perl – Geological Specimen Supply

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Perlite is a hydrated form of obsidian. When a mass of obsidian picks up water, it devitrifies and becomes amorphous perlite. The unhydrated core of the obsidian mass may weather out as an obsidian spherule called an Apache Tear.  Perlite can also form by the sudden cooling and solidification of rhyolitic volcanic ash

Perl-Lome Perlite is a loose, expanded perlite you mix with peat to create a perlite soil mix for indoor planting or hydroponics. Perl-Lome Perlite contains no seeds, disease or insects. The large surface area of the Perl-Lome particles is covered with tiny crevices that retain nutrients and moisture that your plants can use as needed. When mixing your potting soil, make sure it contains at least 25 percent Perl-Lome Expanded Perlite for optimal drainage purposes.

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Perlite is a hydrated form of obsidian. When a mass of obsidian picks up water, it devitrifies and becomes amorphous

perlite - screened and partially dried perlite pellets and popped perlite - set of two 2-ounce jars - Geological Specimen Supply

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