Material: Boulangerite

GENERAL INFO IMAGE

Provenance: Trepča Stari Trg Mine, Trepča complex, Mitrovica, Kosovo

Description: Asbestiform fibres with ideal chemical composition Pb5Sb4S11. Data from the literature. Zeta potential assumed equal to that of galena.

FPTI index: 2.500

FPTI error: 0.045

Parameters:



   Mean Length


Value:       23

Value Error:       0.004979

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   Mean Diameter


Value:       2.5

Value Error:       0.000337

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   Crystal Curvature


Value:       rounded surface

Value Error:       0.0

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   Crystal Habit


Value:       acicular

Value Error:       0.0

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   Fibre Density


Value:       6

Value Error:       0.0

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   Hydrophobic Character of the Surface


Value:       hydrophobic

Value Error:       0.0

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   Surface Area


Value:       0.2

Value Error:       0.000337

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   Total Iron Content


Value:       0.05

Value Error:       0.001245

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   Ferrous Iron


Value:       0.05

Value Error:       0.001245

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   Surface Ferrous/Iron Nuclearity


Value:       1

Value Error:       0.02

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   Content of toxic elements other than iron


Value:       137093

Value Error:       0.0165

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   Fibre dissolution rate


Value:       0.14

Value Error:       0.0

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   Mean velocity of iron release


Value:       0.55

Value Error:       0.000604

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   Velocity of amorphous silica production with dissolution


Value:       0

Value Error:       0.0

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   Mean velocity release of toxic elements


Value:       >4816779

Value Error:       0.0

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   Zeta Potential


Value:       negative at both pH = 4.5 and pH = 7.4

Value Error:       0.0

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   Zeta Potential induced fibre aggregation


Value:       30

Value Error:       0.0

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   Cation exchange capacity


Value:       False

Value Error:       0.0

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