Pumice

$22.50

– Available to MBS members
– Pickup in Stillwater, MN (Contact and address given in order receipt)

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SKU: Soil Purchase - 2 Category:

Description

– 3/8″ Size and smaller, 1 Cubic Foot bag

Pumice is born in pyroclasic events, typically spewed as ash that falls and drifts into deposits or as part of a massive pyroclastic flow. Many factors affect the useful quality, color, and purity of a pumice deposit, but on a chemical analysis level, pumice is basically an aluminum silicate. With no crystalline structure, pumice is a naturally calcined amorphous glass made up of a maze of air-filled vesicles. It can absorb water and nutrients quite well. When used in a Bonsai soil mix, it helps to retain water and it aids the roots to ramify very well.

 

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