Pumice Stone is a volcanic rock, because it contains a lot of gas inside, it can float on water, keep it moist but not wet, save fertilizer, durable without being rotten.
Pumice pumice is very light and water-absorbent, used to mix with pine bark or roots to make it very suitable for orchids with small roots.
Pumice Pumice floats on the water because in its interior there are many gases generated from volcanoes. When the volcanic lava erupts rapidly and the volatile matter in the lava does not escape, the pores are left behind and this makes the stone softer.
Pumice pumice consists of many sizes: 0.3 – 0.5cm, 0.5 – 0.8cm, 1 – 2cm …
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