Sell 【spot goods】 ™✕Pumice Stone 500grams High-quality for Cactus & Succulents Small Size best price

Pumice is a naturally-occuring (volcanic origin) foamed glass stone. On a micro level, pumice stones are sponge-like in form factor (riven with holes and hollows of various sizes) yet, being amorphous silica glass, doesn't absorb moisture and swell, but rather retains moisture by virtue of its physical structure— 1) held within the tiny-to-microscopic pores in the foamy-stone 2) caught on the rough, irregular surface, and 3) caught and held in the spaces between the tiny stones themselves. This type of moisture retention is ideal for controlling drainage rates. One simply adjusts the stone size blend to dial up the desired drainage rate. This same structure provides the vital aeration spaces needed by roots to expell and absorb gasses. Use as soil potting mix to achieve desired grittiness. Picked up from river and upon packaging but it becomes lighter due to heat, storing and shipping process. That’s the reasons why pumice stones becomes dry and lighter. Note: 100% pumice. No additional weight due to moisture or unnecessary rocks. All pumice are washed and sun dried and it will arrived in exact weight.