化學組成, 鍵及結構：(礦物)

一般是由铝、钾、钠的硅酸盐所成，即以SiO2为主要成分的矿物。因浮石多采自海水，可能亦含有氯、镁等海水中存在的物质。其成分為65%-75%為二氧化硅，9%-20%為三氧化二鋁。

Chemical composition, bonding and structure: (Mineral)

Pumice are generally made ​​of aluminum, potassium, sodium silicate, a mineral that is a main component of SiO2. Also, pumice are collected from the sea which may also contain chlorine, magnesium and other substances present in the water. Having a composition of 65% -75% of silica, 9% -20% of the aluminum oxide.

原生物：(化石)

浮石的成因是因為在中酸性火山爆發時，含有大量氣體氣泡之岩漿被噴發至空中，冷卻迅速凝固形成火山玻璃，礦物來不及結晶，同時產生許多氣泡殘留的孔洞,以至形成浮石。

Living Specimens: (Fossil)

Because of the acidic volcanic eruption, magma which contains a lot of gas bubbles are erupting into the air, cooling rapidly and solidified to form a volcanic glass, mineral don’t have time for crystallization, therefore generate a lot of bubbles left holes, as well as the formation of pumice.

浮石有淺褐色、灰白色、黃白色、綠色等，不透明，呈海綿狀，表面粗糙，氣孔極多，可浮於水上。由於含大量玻璃質，在換質作用下很容易發生沸石化或黏土化等的蝕變作用。它的特点是质量轻、强度高、耐酸碱、耐腐蚀，且无污染、无放射性等

Pumice has light brown, gray, yellow and white, green, etc., Pumice is opaque, spongy, surface roughness, many porosity and it can float on the water. Due to contain a large number of glassy, under the action of qualitative change, they are prone to zeolite clay and so the alteration. It is characterized by light weight, high strength, acid and alkali, corrosion resistance, and non-polluting, non-radioactive, etc.

浮石一般广泛用于建筑、园林、纺织业、制衣厂、服装及牛仔服装洗水厂、洗漂厂、染整厂等行业，同時亦可以有效的去除皮肤上残留的角质层，是护肤、护足的佳品。

Pumice is generally widely used in construction, landscaping, textiles, garment factory, clothing and jeans washing plants, washing and bleaching plants, dyeing and finishing plants and other industries. Also, pumice can effectively remove residue on the skin stratum corneum, the best thing of skin care and foot care.

我國浮石資源十分豐富。北起黑龍江、南至海南島的火山分布區都有浮石礦產分布，以北方地區為多，質量較好，噴發年代較新，多產於沿海地區。

China are very rich in pumice. Pumice are located at the north of Heilongjiang, volcanic distribution area south of Hainan Island. Their quality is more better, prolific in coastal areas.

浮石可以當成中藥材，有下列功效：
(1)清肺化痰：用於肺熱痰稠、咯血，常配貝母；
(2)軟堅散結：用於瘰癧、泌尿系結石或甲狀腺腫大。

Pumice can be used as herbal medicines, which are
(A) clearing the lungs phlegm: For Hyperactivity thick sputum, hemoptysis, often with Fritillaria;
(2) Endometriosis: for scrofula, urinary stones or goiter