There is a very compact struchture in golden phoenix stone，It will not be stained by the pollutants such as tea or ink，if you clean a bit more then it will be clean and light as new.
1.Daily Cleaning
Water and cleaning agents such as cleanser essence, soapsuds can be used to clean crystal jade stone.
2.Treatment of scratches on crystal jade stone
Crystal jade stone floor should remain clean. Dust, sands on the surface of crystal jade stone should be removed timely, or they may grind the surface. When slight scratches appeared on the surface of the crystal jade stone, smear some toothpaste on the scratches, wipe with soft dry cloth again and again. Then wax crystal jade stone with floor wax, they will be shine just like new ones.
3.Cleaning method for special pollutant
When the surface of crystal jade stone is polluted, it should be cleaned with soft cloth instantly and wash with water. 
If filthy mark is still there, following cleaning agents are recommended to clean it.
 

Type of pollutants	Cleaning agents
Tea,coffee,ice cream,grease	NaOH.KHCO3,weak alkali solution
Sediment,ink,iron rust,plaster	Weak acid solution,such as HCL.HNO3.H2SO4
Paint,drawing pen	(oxalic acid is preferable when stained by ink)Turpentine,C2 HCL3,acetone
Sauce,wax,carbon powder	Solution of acid or alkali
Mud	Linseed oil

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