Description
DOWNLOAD AMIS CERTIFICATE (PDF)
AMIS0699 ZrO2 65.43% Mineral Sands Kenya
Origin of Material
The standard was made using material from the Kwale Heavy Minerals Sands deposit in Kenya. Kwale is located approximately 50km south of Mombasa and some 10km inland from the Kenyan coast.
Approximate Mineral and Chemical Composition
The Kwale deposit, is of aeolian origin deposited as coastal dunes after conditions of intense erosion. The heavy minerals consist of an abundant concertation of ilmenite, rutile and zircon. The deposits also contain clay and silt fraction of 25 to 30%.
Certified Concentrations
Analyte Method 4(µ) 6 ± (2s) Unit
Zr 1XRF 47.66 0.33 %
SG 2SG 4.63 0.19 Dimensionless
Al XRF 6721 394 ppm
Ce 3FUS 43 4 ppm
Dy FUS 81 19 ppm
Er FUS 112 27 ppm
Eu FUS 4 1 ppm
Fe XRF 693 112 ppm
Gd FUS 30 9 ppm
Hf XRF 1.10 0.068 %
Ho FUS 25 3 ppm
La FUS 7 1 ppm
Lu FUS 40 7 ppm
Nd FUS 19 3 ppm
P XRF 379 54 ppm
Pr FUS 3 0.4 ppm
Si XRF 15.12 0.16 %
Sm FUS 13 2 ppm
Tb FUS 8 2 ppm
Th XRF 131 14 ppm
Ti XRF 1040 115 ppm
Tm FUS 23 3 ppm
U XRF 271 33 ppm
Y FUS 924 66 ppm
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method 4(µ) 6 ± (2s) Unit
ZrO2 XRF 64.43 0.44 %
Al2O3 XRF 1.27 0.074 %
CeO2 FUS 0.005 0.001 %
Fe2O3 XRF 0.10 0.02 %
HfO2 XRF 1.30 0.080 %
P2O5 XRF 0.087 0.01 %
SiO2 XRF 32.18 0.35 %
ThO2 XRF 0.015 0.003 %
TiO2 XRF 0.17 0.02 %
U3O8 XRF 0.033 0.01 %
