1.Packing:50kg/1ton bags 2.Colour:Black 3.Size:15-20cm 4.USD140-180/MT 5.Natrual mine

Size:1-3mm,3-5mm,5-7mm,7-10mm,5-10mm;1-2cm,2-4cm,3-5cm,4-8cm,5-10cm,etc

 

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:

1.It has lots of holes.

2.Weight is very light.

3.Perfect intensity

4.Heat preservation and thermal insulation, noice insulation.

5.Fireproofing

6.Corrosion and acid-base resisting

7.Non-pollution and no radioactivity, environment protection

 

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/m 3 640-860/(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.

The pictures following are taken by real products:

Alibaba Certificate:

My Mobile: 86 13722996216

15-20cm Pumice Stone