Silica (SiO2) sand is easily obtainable on beaches, and manufacturers commonly use it to make glass. People usually crush sandstone or collect it from rivers and beaches. The purest form of silica has a fusion point of 1,760C (3,200F). However, impurities lower the melting point of sands used to extract silica. For high-melting-point casting like steel, one should use at least 98% pure silica. For lower-melting-point metals such as cast iron and non-ferrous
Flint Egyptian Natural
Pebbles
PRODUCTION: The total production is 25000 - 30000 ton per year and our plan is to increase the production to be 40000 during 2023.
â?¢ Our pebbles are used as a grinding ball into ball mills (ceramics industry) The high silica content ( 98.8%), and the hardness (7.5 on the Mos scale) as well as the rounding make our flint pebbles is an exceptional quality, with the local companies and the export territories.
Size:
40 mm : 60 mm
60 mm : 80 mm
80 mm : 100 mm
Chemical and Physical Analysis
Si02 >= 99.31%
Al203
