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| | Post Date: 2007-1-9 Expiry date: 6 months |
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Mai fan stone:
Mai fan stone calcium alkaline rock magma differentiation later period result of series, one half spot rock weathered of igenous rock, it is the aggregate of many kinds of mineral. Mai fan stone with plagioclase, potassium feldspar main fact, secondly is made up of quartz, horn blende, black mica and accessory substance phosphorus fossil,etc.. If wheat meal stone make slight powder of 325 mesh, fetch one observe under electron microscope, it is obvious as the coral reef or spongy porous structure.
Mai fan stone main chemical composition for silicon aluminium salt not sour of inorganic, including: SiO2,AL2O3,Fe2O3,FeO,MgO,CaO,K2O,Na2O TiO2,P2O5,MnO.....Contain all constant element animal need also, such as K, Na, Ca,P,Mg, Fe,Cu,Zn, trace elements, such as Mn, Mo,etc. and rare-earth element, the amount of kind about 58. Make forms in detail :
Mai fan stone Chemical composition analysis
Symbol Content Symbol Content Symbol Content
SiO2 67.63 La 48 Ge 0.9
Al2O3 15.70 Ce 107 Ga 12
TiO2 0.4 Pr 8.3 Pb 14
FeO 1.51 Nd 41 Sn 1.1
Fe2O3 1.74 Sm 3.9 Bi 0.16
CaO 2.66 Eu 1.27 Zn 17.5
MgO 1.24 Gd 2.8 Be 1.7
P2O3 0.17 Tb 0.73 Cr 17
MnO 0.12 Dy 2 Ba 2500
K2O 3.86 Ho 0.61 Mn 1100
Na2O 4.22 Er 0.91 Cu 16.5
H2O 0.69 Tm 0.2 Ni 5.7
CO2 0.26 Yb 0.94 Co 5.6
Y 16 Sr 670
Lu 0.14 Zr 135
Mo 1.1
V 40
Sc 5.1
Nb 8.8
Th <10
Cd <0.2
As <2
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