Description

Volcanic Foot Stone – Shell

Volcanic Foot Stone – Shell

This stone will never lose its effectiveness or shape. Naturally made Volcanic Stone safely assists in the exfoliation of dry, dead skin from the body, hands and especially the feet.

This simple yet amazing little stone that fits nicely in your hand is lightweight, with a surface made of tiny little holes. Safest and most natural way to exfoliate and smooth the skin of body, hands and feet.

A Therapeutic mixture of basaltic minerals, silicon, magnesium, iron and oxygen which creates the holes in the stone easily remove dry, dead skin from body, hands and feet. They are essential to your shower routine.

Take a look also to our Volcanic Foot Stone – Lemon

Pumice

Pumice called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. It, typically light colored.

Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles. Thicker vesicle walls and dark colored and denser.

Pumice, created when super-heated, highly pressurized rock, violently ejected from a volcano. After all, the unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization.

The depressurization creates bubbles by lowering the solubility of gases (including water and CO₂). That, dissolved in the lava, causing the gases to rapidly exsolve (like the bubbles of CO₂ that appear when a carbonated drink is opened).

The simultaneous cooling and depressurization freezes the bubbles in a matrix. Eruptions under water, rapidly cooled and the large volume of pumice created can be a shipping hazard for cargo ships.

The pores of pumice and pumicite can have sizes from a wide range. Namely, the size of the pores can be as large as parts of micrometre (μm) and more rough pores with sizes up to 2–3 mm.

The main difference between pumice and the pumicite is in the size of the grains. More specifically, the material with grain size of 2 mm or larger (up to large blocks) is classified as pumice.

On the other hand, the material with size of grains smaller than 2 mm (including the fine dispersed material) is classified as pumicite.