Research Article
The Identification and Synthesis of Lead Apatite Minerals Formed in Lead Water Pipes
Table 2
Composition of the target minerals determined from elemental analysis.
| | Min. | Repeat | Composition in moles | Pb + Ca | Divalent cation deficiency | (Pb + Ca)/P | | Pb/Ca | | ±0.1 | ±0.01 | % Ca [Ca/(Ca + Pb)] × 100 | | Pb2+ | Ca2+ | | Cl− | (OH−) | |
| | T1 | A | 3.5 | 1.2 | 3.0 | 0.03 | 0.97 | 4.7 | 0.3 | 1.6 | 26 | 2.9 | | B | 3.4 | 1.4 | 3.0 | 0.00 | 1.00 | 4.8 | 0.2 | 1.6 | 29 | 2.4 | | C | 3.4 | 1.3 | 3.0 | 0.06 | 0.94 | 4.7 | 0.3 | 1.6 | 28 | 2.6 | | Av | 3.4 | 1.3 | 3.0 | 0.03 | 0.97 | 4.7 | 0.3 | 1.6 | 28 | 2.6 | | T2 | A | 3.6 | 1.1 | 3.0 | 0.03 | 0.97 | 4.7 | 0.3 | 1.6 | 23 | 3.3 | | B | 3.4 | 1.4 | 3.0 | 0.03 | 0.97 | 4.8 | 0.2 | 1.6 | 29 | 2.4 | | C | 3.8 | 1.0 | 3.0 | 0.16 | 0.84 | 4.8 | 0.2 | 1.6 | 20 | 3.8 | | Av | 3.6 | 1.2 | 3.0 | 0.07 | 0.93 | 4.8 | 0.2 | 1.6 | 25 | 3.2 | | T3 | A | 3.6 | 1.2 | 3.0 | 0.25 | 0.75 | 4.8 | 0.2 | 1.6 | 25 | 3.0 | | B | 3.4 | 1.3 | 3.0 | 0.27 | 0.73 | 4.7 | 0.3 | 1.6 | 28 | 2.6 | | C | 3.8 | 1.0 | 3.0 | 0.29 | 0.71 | 4.8 | 0.2 | 1.6 | 28 | 3.8 | | Av | 3.6 | 1.2 | 3.0 | 0.27 | 0.73 | 4.8 | 0.2 | 1.6 | 25 | 3.1 |
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