Sri Lanka is famous throughout the world for the exquisite mineral varieties of very high purity. Among them vein quartz too holds prime importance. The material, generally known as quartz is primarily made of silicon and oxygen (silica-SiO2) and is considered one of the most abundant minerals found in the Earth's crust.
Dear sir
We can supply you Magnese lumps from Brazil Grade MN 42 - 48 % qty 40000 Mts per month on CFR any port .
Pls send me your requirement .
Regs
Shajeev cp
A grade quartz: Quartz lumps with clean white / translucent sides and negligible physical impurities, with a silica percentage of around 98% or higher.
1. Oversize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
2. Undersize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
3. Contamination (number) which is visually counted in terms of black and red-yellow particles in ~50 inch2 or ~324 cm2 area = <20
A grade quartz: Quartz lumps with clean white / translucent sides and negligible physical impurities, with a silica percentage of around 98% or higher.
1. Oversize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
2. Undersize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
3. Contamination (number) which is visually counted in terms of black and red-yellow particles in ~50 inch2 or ~324 cm2 area = <20
A grade quartz: Quartz lumps with clean white / translucent sides and negligible physical impurities, with a silica percentage of around 98% or higher.
1. Oversize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
2. Undersize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <10%
3. Contamination (number) which is visually counted in terms of black and red-yellow particles in ~50 inch2 or ~324 cm2 area = <20
A grade quartz: Quartz lumps with clean white / translucent sides and negligible physical impurities, with a silica percentage of around 98% or higher.
The powder is passed through high intensity magnets before packaging.
B grade quartz: Quartz lumps with one or more sides contaminated with iron oxidation marks, clay, etc.
1. Oversize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <20%
2. Undersize (% by weight) using NABL calibrated test sieves of Jayant Scientific = <20%
3. Contamination (number) which is visually counted in terms of black and red-yellow particles in ~50 inch2 or ~324 cm2 area = <50
Note: Sizing as per ASTM standards.
0201-Quartz Grits Sand 140-40# (~0.1-0.4 mm) B grade
0202-Quartz Grits Sand 50-25# (~0.3-0.7 mm) B grade
0203-Quartz Grits Sand 30-16# (~0.6-1.2 mm) B grade
0204-Quartz Grits Sand 16-8# (~1.2-2.4 mm) B grade
0205-Quartz Grits Sand 8-5# (~2.5-4.0 mm) B grade
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