Sell

详情

 XRF Chemical Analysis 
 
Oxides  %
SiO2 *9.6
Al2O3 0.2
Fe2O3
TiO2
CaO
MgO
K2O
Na2O
L.o.I (***0 C)

 .**0
0.*1
0.*2
0.*1
0.*1
0.*1
0.*0

General sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz.
 sand particles range in diameter from 0.***5 mm (or ⅟*6 mm) to 2 mm. An individual particle in this range size is termed a sand grain. Sand grains are between gravel (with particles ranging from 2 mm up to *4 mm) and silt (particles smaller than 0.***5 mm down to 0.**4 mm).