Liu Fang Zi bentonite deposits are inorganic substance of natural clay mine formed 140 million years ago in late Jurassic and early Cretaceous period due to ash accumulation and thermal effect from crustal movement and volcano 발진, after billions of years high temperature and high pressure 효력. The verified deposits add up to 22 million tons in 합계, all of which are natural minerals of sodium 벤토나이트. Rarely has there been such a large amount deposit and so good quality bentonite in China or even the whole Asia. 
Liu Fang Zi Natural Sodium Bentonite Chemical Composition (%)
 
 

Substance	Content	Substance	Content	Substance	Content
SiO2	71.79	Fe2o3	2.23	CaO	0.07
Al2O3	15.24	Na2O	1.95	TiO2	0.14
MgO	2.26	K2O	0.73	이산화탄소	0.05

Physical Performance:
 
 

Mont 내용 %	붇기 양 ml/g	Colloidical 원자가 (ml/15g)	Water Absorption 비율 (%)	Swelling 색인 (ml/2g)	특정한 점성
>=70	>=30	>=100	>=500~600	>=24	>=1.19±0.02