Analysis of sphalerite using X-ray Fluorescence technique is shown in Table 1. Sphalerite may be nearly pure zinc sulfide or, it may contain considerable quantities of iron and minor amounts of manganese and cadmium. This phenomenon is common in minerals, and it can be indicated by writing the formula as (Zn, Fe)S, which shows that total of Zn+Fe is 1 with respect to S=1, but actual amounts of Zn and Fe are variable. How would you explain this situation by mineral formula calculation
Analysis of sphalerite using X-ray Fluorescence technique is shown in Table 1. Sphalerite may be nearly pure zinc sulfide or, it may contain considerable quantities of iron and minor amounts of manganese and cadmium. This phenomenon is common in minerals, and it can be indicated by writing the formula as (Zn, Fe)S, which shows that total of Zn+Fe is 1 with respect to S=1, but actual amounts of Zn and Fe are variable. How would you explain this situation by mineral formula calculation
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter5: Gases
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Analysis of sphalerite using X-ray Fluorescence technique is shown in Table 1. Sphalerite may be nearly pure zinc sulfide or, it may contain considerable quantities of iron and minor amounts of manganese and cadmium. This phenomenon is common in minerals, and it can be indicated by writing the formula as (Zn, Fe)S, which shows that total of Zn+Fe is 1 with respect to S=1, but actual amounts of Zn and Fe are variable. How would you explain this situation by mineral formula calculation?
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Element/elemen
Sample 1
Sample 2
(% weight)
(% weight)
Sampel 1
Sampel 2
(% berat)
(% berat)
Fe
6.99
19.25
Mn
1.66
Cd
2.23
1.28
Zn
56.38
43.67
S
33.99
33.57
Total
99.59
99.43
Atomic weight/ berat atom (g/mol: Fe: 55.85, Mn: 54.94, Cd: 112.41, Zn: 65.38, S: 32.1
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