Nature Lava Pumice Stone

Nature Lava Pumice Stone

Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. 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 are 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 are rapidly cooled and the large volume of pumice created can be a shipping hazard for cargo ships.

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Nature Lava Pumice Stone



Nature Lava Pumice Stone is created when super-heated, highly pressurized rock is violently ejected from a volcano.


Black pumice aggregates.jpgThe 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 is 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 freeze the bubbles in a matrix. Eruptions under water are rapidly cooled and the large volume of pumice created can be a shipping hazard for cargo ships.


Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock. It is commonly, but not exclusively
of silicic or felsic to intermediate in composition (e.g., rhyolitic, dacitic, andesite, Pantelleria, phonolite, trachyte), but basaltic and other compositions are known.

Pumice is commonly pale in color, ranging from white, cream, blue or grey, to green-brown or black. It forms when volcanic gases exsolving from viscous magma form bubbles that remain within the viscous magma as it cools to glass. Pumice is a common product of explosive eruptions (Plinian and ignimbrite-forming) and commonly forms zones in upper parts of silicic lavas. Pumice has a porosity of 64–85% by volume and it floats on water, possibly for years, until it is eventually waterlogged and sinks.

Uses

Pumice is a very lightweight, porous, and abrasive material and it has been used for centuries in the construction and beauty industry as well as in early medicine.
It is also used as an abrasive, especially in polishes, pencil erasers, and the production of stone-washed jeans. Pumice was also used in the early bookmaking industry to prepare parchment paper and leather bindings.[22] There is a high demand for pumice, particularly for water filtration, chemical spill containment, cement manufacturing, horticulture, and increasingly for the pet industry. The mining of pumice in environmentally sensitive areas has been under more scrutiny after such an operation was stopped in the U.S. state of Oregon, at Rock Mesa in the southern part of the Three Sisters Wilderness.



Nature Lava Pumice Stone has red, black, white, gray, and so on. The colors vary in weight and the uses vary. It is a gas-rich melt slurry sprayed into the air to condense, the gas contained in it swells and escapes, leaving pores, forming a slag-like appearance, black, dark brown, and the pores are often irregular, round and oblong, and the size It ranges from a few millimeters to 10 centimeters and is distributed around the crater.

Available in variety of size i.e. 0.5-2cm, 2-3cm, 2-4cm, and 3-5cm.

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Contact Us of Realho Stone

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Xiamen Realho Stone Co., Ltd

Ms.Pearl Lee

Tel: 86-592-8326666  Fax: 86-592-8327777

Email: Sales@realho.com

Cell/Whatsapp: 86-18850050013

Add: Unit 8F, Yongtongchang Blad, No.388 Jiahe Road, Xiamen China

  


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