Macphersonite, a new mineral from Leadhills, Scotland, and Saint-Prix, France— a polymorph of leadhillite and susannite

Livingstone, A.; Sarp, H.

doi:10.1180/minmag.1984.048.347.14

Cited by 13 publications

(12 citation statements)

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“…In typical EDS spectra from these minerals there is significant peak overlap between the Pb M (2.342 keV) and S K (2.307 keV) lines and thus the presence of sulfur is easily masked by the intense lead peak (Newbury, 2009;Newbury & Ritchie, 2014). WDS compositional data for these minerals are limited in number (Livingstone & Sarp, 1984). In addition to Pb and S, macphersonite contains traces of Cu ( 0.15 wt% CuO) and Cd ( 0.2 wt% CdO), whereas leadhillite and susannite do not appear to contain any minor components.…”

Section: Chemical Composition Of Hydrocerussite-related Mineralsmentioning

confidence: 99%

Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy

Siidra

Nekrasova

Depmeier

et al. 2018

Acta Crystallogr Sect B

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White lead or basic lead carbonate, 2PbCO·Pb(OH), the synthetic analogue of hydrocerussite Pb(OH)(CO), has been known since antiquity as the most frequently used white paint. A number of different minerals and synthetic materials compositionally and structurally related to hydrocerussite have been described within the last two decades. Herein, a review is given of general structural principles, chemical variations and IR spectra of the rapidly growing family of hydrocerussite-related minerals and synthetic materials. Only structures containing a hydroxo- and/or oxo-component, i.e. which are compositionally directly related with hydrocerussite and `white lead', are reviewed in detail. An essential structural feature of all the considered phases is the presence of electroneutral [PbCO] cerussite-type layers or sheets. Various interleaved sheets can be incorporated between the cerussite-type sheets. Different sheets are stacked into two-dimensional blocks separated by the stereochemically active 6s lone electron pairs on Pb cations. Minerals and synthetic materials described herein, together with a number of still hypothetical members, constitute a family of modular structures. Hydrocerussite, abellaite and grootfonteinite can be considered to constitute a merotype family of structures. The remaining hydrocerussite-related structures discussed are built on similar principles, but are more complex. Structural architectures of somersetite and slag phase from Lavrion, Attica, Greece, are unique for oxysalt mineral structures in general. Thus, the whole family of hydrocerussite-related phases can be denoted as a plesiotype family of modular structures. The crystal structures of hydrocerussite from Merehead quarry, Somerset, England, and of its synthetic analogue, both determined from single crystals, are reported here for the first time. The results of the infrared (IR) spectroscopy show that this method is useful for distinguishing several different minerals related to hydrocerussite and their synthetic analogues.

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Section: Chemical Composition Of Hydrocerussite-related Mineralsmentioning

confidence: 99%

Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy

Siidra

Nekrasova

Depmeier

et al. 2018

Acta Crystallogr Sect B

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“…In the course of examining minerals associated with macphersonite from Leadhills Dod, Strathclyde region, (Livingstone & Sarp 1984) at the Royal Museum of Scotland, a creamy white lining to a small cavity in quartz was found to consist primarily of tiny glassy crystals, the X-ray powder pattern of which could not be identified. There was a remarkable degree of similarity with the powder pattern of the synthetic compound P b 5 ( P 0 4 ) 3 O H , lead hydroxyapatite .…”

Section: Introductionmentioning

confidence: 95%

Mattheddleite, a new mineral of the apatite group from Leadhills, Strathclyde Region

Livingstone¹,

Ryback

Fejer

et al. 1987

SJG

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Synopsis Mattheddleite, a new lead member of the apatite group with sulphur and silicon totally replacing phosphorus, occurs as tiny crystals (<0.1 mm) forming drusy cavities in specimens from Leadhills. Optically, the mineral is colourless in transmitted light and is uniaxial with ω2.017 and ε1.999. X-ray powder diffraction data are similar to the synthetic compound lead hydroxyapatite and may be indexed on a hexagonal cell with a 9.963 and c 7.464 Å (the cell volume is 642 Å 3 ). The calculated density is 6.96 g/cm 3 . The strongest lines in the powder pattern are [ d , ( I ) ( hkl )]: 2.988 (100) (112, 211), 4.32 (40) (200), 4.13 (40) (111), 2.877 (40) (300), 3.26 (30) (210). Single crystal Weissenberg photographs are close to those of pyromorphite, space group P6 3 /m. Chemically, mattheddleite does not contain S and Si in the expected 1:1 ratio, and the ideal formula may be expressed as Pb 20 (SiO 4 ) 7 (SO 4 ) 4 Cl 4 . The infrared spectrum is very similar to that of hydroxyellestadite. Associated minerals are lanarkite, cerussite, hydrocerussite, caledonite, leadhillite, susannite, and macphersonite. The mineral is named after Matthew Forster Heddle (1828–1897), a famous Scottish mineralogist.

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“…The variation in spectra described here for the three polymorphs differs from that described previously for various specimens of leadhillite (sensu strictu) by Russell et al (1983) who showed that the relative intensity of OH, CO3, and SOn absorption bands varied, and proposed that mutual substitution of these ions occurs within the leadhillite structure.The X-ray powder pattern of macphersonite is distinctly different from those of susannite and leadhillite (Livingstone and Sarp, 1984), which themselves, as reported by Mrose and Christian (1969), are virtually indistinguishable. It is shown here, however, that all three polymorphs are readily distinguished by their IR spectra.…”

mentioning

confidence: 53%

Discovery of volkonskoite

Mackenzie¹

1984

Mineral. mag.

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All three polymorphs exhibit a single broad asymmetric band at 140 cm-1 (not shown), the assignment of which is not known.Conclusions. The variation in spectra described here for the three polymorphs differs from that described previously for various specimens of leadhillite (sensu strictu) by Russell et al. (1983) who showed that the relative intensity of OH, CO3, and SOn absorption bands varied, and proposed that mutual substitution of these ions occurs within the leadhillite structure.The X-ray powder pattern of macphersonite is distinctly different from those of susannite and leadhillite (Livingstone and Sarp, 1984), which themselves, as reported by Mrose and Christian (1969), are virtually indistinguishable. It is shown here, however, that all three polymorphs are readily distinguished by their IR spectra. Moreover, the appearance in a high resolution IR spectrum of the closely spaced 691, 687 cm-~ doublet may be diagnostic for macphersonite.

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Macphersonite, a new mineral from Leadhills, Scotland, and Saint-Prix, France— a polymorph of leadhillite and susannite

Abstract: ABSTRACT. Macphersonite is white, resinous to adamantine, hardness (Mohs) 2 89 3, density 6.50-6.55 grn/cm 3 and possesses a perfect cleavage on {010}.

Cited by 13 publications

References 1 publication

Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy

Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy

Mattheddleite, a new mineral of the apatite group from Leadhills, Strathclyde Region

Discovery of volkonskoite

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