silica sand

minerals

We hold exclusive marketing rights to high grade Silica Sand deposits with current mineable reserves conservatively estimated at 30-40 million metric tons.

Our Silica Sand can currently be shipped in bulk sizes 50/65,000 mts or less upon request.

Current uses for Silica Sand include glass manufacture, industrial production, ceramics and construction.

Due to our ability to sell CFR in sizes up to Panamax shipments, we market our product worldwide, with an emphasis on Asia, the Americas, Europe and the Mediterranean.

 

Our standard specifications of Silica Sand are as follows:

Chemical Composition Unit
Al2O3 8.56 %(m/m) d.m.
CaO 0.51 %(m/m) d.m.
Fe2O3 0.36 %(m/m) d.m.
K2O 4.17 %(m/m) d.m.
Na2O 1.28 %(m/m) d.m.
MgO 0.08 %(m/m) d.m.
SiO2 84.56 %(m/m) d.m.
Cr2O3 < 0.05 %(m/m) d.m.
0.1% MAX %(m/m) d.m.
Solubility 6.57 %(m/m) d.m.

methods

Analysis Technique Method
Composition XRF ISO 12677
Solubility Gravimetric ISO 13503-2
Grinding < mm NVN 7312

sizing

US MeshMicronWt % Retained

16 1180 17.1
20 850 20.1
30 600 21.9
40 435 20.1
50 300 12.6
60 250 4.2
70 212 1.8
< 70 Pan 2.1
3-Run average
20-40 Cut = 42.0%
30-50 Cut = 32.7%
40-70 Cut = 18.6%
Example: 20-40 cut = sand retained on 30, 40 US sieves, and excluded by 20 US sieve.
Original Sample, gm 100.0
Total % 100.0
Clusters % 0.00 None detected visually
Mean Diameter, microns 532
Median Diameter, (D50) microns 695

Sphericity and Roundness

Krumbein Roundness 0.35 0.6 min
Krumbein Sphericity 0.40 0.6 min