ENGINEERING DATA OF PUMICE
Chemical Analysis  
·  Silicium Oxide (SİO2)…………………........................................................ 76.75 %
·  Titanium Dioxide (TiO2)…………………........................................................ 0.33 %
·  Calcium Oxide (CaO)…………………......................................................... 0.65 %
·  Sodium Oxide (Na2O)…………………...................................................... 3.63 %
·  Loss At Ignition (A.Za)…………………........................................................ 3.83 %
·  Iron Oxide (Fe2O3)…………………...................................................... 1.37 %
·  Alumium Oxide (Al2O3)…………………...................................................... 11.47 %
·  Magnesium Oxide (MgO)…………………........................................................ 0.72 %
·  Potassium Oxide (K2O)…………………......................................................... 4.25 %
 
TOTAL=
100.00 %
Physical Properties  
• Chemical Name: Amorphous Aluminum Silicate
• Hardness (MOHS): 6.1
• pH: 7.2
• Radioactivity: None
• Loss on Ignition (LOI): 3.83%
• Softening Point: 900 degrees C
• Water Soluble Substances: 0.16%
• Acid Soluble Substances: 2.8%
• Reactivity: Inert
• Appearance: Off-white powder