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  • Egg Shape Massage And Sauna Stone
  • Egg Shape Massage And Sauna Stone
  • Egg Shape Massage And Sauna Stone
  • Egg Shape Massage And Sauna Stone
Egg Shape Massage And Sauna Stone

red grey volcanic lava rocks
1.Chemical Composition:

SiO2

CaO

MgO

Fe2O3

FeO

Al2O3

TiO2

K2O

Na2O

53.82%

8.36%

2.46%

9.08%

1.12%

16.89%

0.06%

2.30%

2.55%

2.Properties:
a.It has lots of holes.
b.Weight is very light.
c.Perfect intensity
d.Heat preservation and thermal insulation, noice insulation.
e.Fireproofing
f.Corrosion and acid-base resisting
g.Non-pollution and no radioactivity, environment protection
h.Different specifications.
3.Physical properties:

Volume-weight(kg/m3)

430-870

Water absorption

11.7-17.03%

Loose volume-weight(kg/m3)

520

Cylinder pressure strength

1.218Mpa

Moisture

1%

Mechanical Intensity

5.08Mpa

Heat conductivity coefficient w/(m.k)

0.326

Soften coefficient

0.84

Apparent density

Kg/m3 640-860/(390*240*190)

Hollow ratio(%)

48/(390 *240 *190)

4.Usage:
Lava is used in construction,irrigation works, grinding, filter material, barbecue charcoal, garden scene, soilless culture, etc. It is also a perfect material used in hot stone therapy, which is good to Promote the body's metabolism.

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