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UNIVERZITA KOMENSKÉHO V BRATISLAVE VZÁCNOPRVKOVÁ ...

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minerál Ft Ft<br />

č. an. 177 178<br />

WO3 0.03 0.00<br />

Nb2O5 20.05 10.04<br />

Ta2O5 61.23 74.05<br />

TiO2 0.72 0.36<br />

ZrO2 0.25 0.12<br />

SnO2 0.19 0.10<br />

UO2 0.00 0.00<br />

Sc2O3 0.01 0.06<br />

Y2O3 0.06 0.02<br />

Sb2O3 0.05 0.05<br />

Fe2O3 1.50 1.88<br />

FeO 8.04 7.64<br />

MnO 6.48 6.07<br />

MgO 0.02 0.04<br />

CaO 0.00 0.00<br />

PbO 0.12 0.00<br />

ZnO 0.00 0.00<br />

suma 98.64 100.42<br />

Kryštalochemické vzorce normalizované na 6 O a 3<br />

katióny<br />

0.001 0.000<br />

0.681 0.357<br />

1.251 1.584<br />

0.041 0.021<br />

0.009 0.005<br />

0.006 0.003<br />

suma B 1.988 1.970<br />

W 6+<br />

Nb 5+<br />

Ta 5+<br />

Ti 4+<br />

Zr 4+<br />

Sn 4+<br />

0.000 0.000<br />

0.001 0.004<br />

0.002 0.001<br />

0.002 0.002<br />

0.085 0.111<br />

0.505 0.503<br />

0.413 0.405<br />

0.002 0.004<br />

0.000 0.000<br />

0.002 0.000<br />

0.000 0.000<br />

suma A 3.000 3.000<br />

U 4+<br />

Sc 3+<br />

Y 3+<br />

Sb 3+<br />

Fe 3+<br />

Fe 2+<br />

Mn 2+<br />

Mg 2+<br />

Ca 2+<br />

Pb 2+<br />

Zn 2+<br />

suma kat. 3.000 3.000<br />

Mn/(Mn+Fe) 0.41 0.40<br />

Ta/(Ta+Nb) 0.65 0.82

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