What is the Difference Between Perlite and Zeolite?

Perlite and zeolite are both naturally occurring mineral substances, but they have distinct differences in their appearance, structure, and properties.

Perlite:

• Appears in white color.
• Has an amorphous glass structure.
• Is an inorganic compound with a relatively high water content.
• Is a type of amorphous volcanic glass.
• Commonly used in potting mixes for succulents.
• Lightens dense soil and provides aeration.

Zeolite:

• Appears in yellow, blue, or green colors.
• Has a microporous structure.
• Is an aluminosilicate mineral.
• Can absorb and freely exchange positively charged cations.
• Commonly used in horticulture as a soil additive for cacti.
• Provides excellent drainage and releases potassium (K), an important macroelement for plants.

In summary, perlite is a white, amorphous volcanic glass that lightens dense soil and provides aeration, while zeolite is a microporous aluminosilicate mineral that comes in various colors and is used as an ion-exchange agent in horticulture.

Comparative Table: Perlite vs Zeolite

Here is a table comparing the differences between perlite and zeolite:

Perlite is an inorganic compound with a relatively high water content and is a type of amorphous volcanic glass. It appears in white color and has an amorphous glass structure. Zeolite, on the other hand, is a microporous aluminosilicate mineral that occurs naturally. It appears in yellow, blue, or green colors and has a microporous structure. Both perlite and zeolite are used in agriculture and horticulture as soil amendments and substrates.