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SCH-1 Certificate of Analysis

Certified Reference Material: Iron Ore

Reference ore SCH-1 was donated to CCRMP by the Iron Ore Company of Canada in 1973. It is from the Schefferville, Quebec, area and is hematite with a mixture of unidentified hydrous oxides of iron, minor magnetite, and trace pyrolusite. The gangue consists mainly of quartz with minor amounts of feldspar and traces of biotite, chlorite, and amphibole.

Certified Values and 95% Confidence Intervals
Constituent wt %
Fe 60.73 ± 0.09
Si 3.78 ± 0.04
Al 0.509 ± 0.009
Ca 0.029 ± 0.003
Mg 0.02 ± 0.001
Na 0.019 ± 0.002
K 0.026 ± 0.002
Mn 0.777 ± 0.008
Ti 0.031 ± 0.002
S 0.007 ± 0.001
P 0.054 ± 0.003

Twenty-four laboratories provided analytical results for one or more of the selected elements in SCH-1.

A copy of Report MRP/MSL 75-168 (TR), "Iron ore SCH-1: Its characterization and preparation for use as a certified reference material", and CANMET Report 78-5, "Certification of reference iron ore SCH-1 for sodium and potassium", will be provided with each order of SCH-1.

For further information

CCRMP, CanmetMINING
555 Booth Street
Ottawa, Ontario K1A 0G1
Canada  

Telephone: 343-543-6830
E-mail: Contact CCRMP

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