OKA-1 Niobium Ore
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OKA-1 is a sample of niobium ore typical of the carbonatite deposit at Oka in western Quebec. The deposit has been characterized mineralogically in detail at CANMET.
Twenty laboratories provided results for niobium by X-ray fluorescence, colorimetry, D.C. plasma-spectrometry, gravimetry, atomic emission, and atomic absorption techniques.
A certificate of analysis will be issued with each order of OKA-1. A copy of CANMET Report 81-1E, "Niobium ore OKA-1: A certified reference material", will be forwarded, free of charge, on request to the Coordinator, CCRMP.
| Constituent | wt % |
|---|---|
| Nb | 0.37 ± 0.01 |
| Mineral | wt % |
|---|---|
| Calcite | 84 |
| Apatite | 5 |
| Biotite | 2 |
| Feldspar | 2 |
| Magnetite | 2 |
| Dolomite | 1 |
| Siderite | 1 |
| Clays | 1 |
| Chlorite | 1 |
| Pyrochlore | <1 |
| Constituent | wt % |
|---|---|
| Ca | 31.3 |
| Fe | 2.8 |
| Si | 2.4 |
| Mg | 1.3 |
| Mn | 1.1 |
| P | 1.1 |
| Sr | 1.0 |
| Al | 0.9 |
| S | 0.6 |
| Nb | 0.4 |
| K | 0.3 |
| Na | 0.2 |
| Zn | 0.05 |
| Loss on ignition | 31.9 |
For further information
CCRMP, CanmetMINING
555 Booth Street,
Ottawa, Ontario, K1A 0G1
Canada
Telephone: 343-543-6830
Email: Contact CCRMP
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