Pyromorphite

<h2 id="properties-and-isomorphism">Properties and isomorphism</h2>
<p>The color of the mineral is usually some bright shade of green, yellow or brown, and the <a href="/facts/Lustre_(mineralogy)/TCobwMGC">luster</a> is resinous. The hardness is 3.5 to 4, and the <a href="/facts/Specific_gravity/ySquGd2x">specific gravity</a> between 6.5 and 7.1.<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a> Owing to <a href="/facts/Isomorphism_(crystallography)/f1XqB5Iq">isomorphous</a> replacement of the <a href="/facts/Phosphorus/27xCeIqs">phosphorus</a> by <a href="/facts/Arsenic/k1c4f44D">arsenic</a> there may be a gradual passage from pyromorphite to mimetite. Varieties containing <a href="/facts/Calcium/hf252CC0">calcium</a> isomorphously replacing lead are lower in density (specific gravity 5.9–6.5) and usually lighter in color; they bear the names polysphaerite (because of the globular form), miesite from <a href="/facts/St%C5%99%C3%ADbro/L8Kujqr8">Stříbro</a> (pronounced <i>Mies</i> in German) in <a href="/facts/Bohemia/Wbr8gt6l">Bohemia</a>, nussierite from Nuizière, <a href="/facts/Ch%C3%A9nelette/fAKnq6IM">Chénelette</a>, near <a href="/facts/Beaujeu,_Rh%C3%B4ne/4buAepTp">Beaujeu</a>, <a href="/facts/Rh%C3%B4ne_(d%C3%A9partement)/dNbvcuMo">Rhône</a>, <a href="/facts/France/CxIeIKM3">France</a>, and cherokine from <a href="/facts/Cherokee_County,_Georgia/wGvG02Qg">Cherokee County</a> in <a href="/facts/Georgia_(U.S._state)/KKnTDY6F">Georgia</a>.
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<h2 id="gallery">Gallery</h2>

<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Lead_apatite/drVzCjyL">Lead apatite</a></li>
<li><a href="/facts/List_of_minerals/4rMMcv2D">List of minerals</a></li></ul>

<h2 id="external-links">External links</h2>

Wikimedia Commons has media related to Pyromorphite.

<ul><li> This article incorporates text from a publication now in the <a href="/facts/Public_domain/YWKMDKw4">public domain</a>: <a href="/facts/Hugh_Chisholm/2vWblUBe">Chisholm, Hugh</a>, ed. (1911). "Pyromorphite". <i><a href="/facts/Encyclop%C3%A6dia_Britannica_Eleventh_Edition/mPElbCRY">Encyclopædia Britannica</a></i>. Vol. 22 (11th ed.). Cambridge University Press. pp. 693–694.</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Cornelius S. Hurlbut; W. Edwin Sharp (1998). Dana's Minerals and How to Study Them (After Edward Salisbury Dana). John Wiley & Sons. p. 216. ISBN 978-0-471-15677-2. <a href="978-0-471-15677-2" target="_blank">978-0-471-15677-2</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Cornelis Klein; Barbara Dutrow (2007). Manual of Mineral Science. Wiley. p. 430. ISBN 978-0-471-72157-4. <a href="978-0-471-72157-4" target="_blank">978-0-471-72157-4</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>A. Bishop; A. Woolley; W. Hamilton (1999). Cambridge Guide to Minerals, Rocks and Fossils. Cambridge University Press. p. 88. ISBN 978-0-521-77881-7. <a href="978-0-521-77881-7" target="_blank">978-0-521-77881-7</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>Nicholas Eastaugh; Valentine Walsh; Tracey Chaplin; Ruth Siddall (2008). Pigment Compendium. Routledge. p. 320. ISBN 978-1-136-37392-3. <a href="978-1-136-37392-3" target="_blank">978-1-136-37392-3</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>Klaproth (1784). Von dem Wassereisen, als einem mit Phosphorsäure verbundenen Eisenkalke (in German). On hydrosiderum [i.e., iron phosphide, Fe2P] as a calcined [i.e., roasted] iron [that is] bonded with phosphoric acid), Chemische Annalen für die Freunde der Naturlehre …, 1 (5) : 390–399.  From p. 394:  After remarking that lead ores that contain phosphorus can be treated with strong acids to produce phosphoric acid, Klaproth notes that:  " … wie solches zuerst Hr. Gahn in Schweden entdeckt, ich selbst aber bey Unersuchung des krystallisirten grünen Bleyerzes von der heil. Dreyfaltigkeit zu Zschopau bestätigt gefunden habe."  ( … as such Mr. Gahn in Sweden first discovered, I myself, however, have found [to be] confirmed by investigation of the crystallized green lead ore [i.e., pyromorphite] from the Holy Trinity at Zschopau in Germany] <a href="https://books.google.com/books?id=lqU5AAAAcAAJ&pg=PA390" target="_blank">https://books.google.com/books?id=lqU5AAAAcAAJ&pg=PA390</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
<li id="fn:6"><p>Details of Klaproth's chemical analysis of pyromorphite appear in: Klaproth (1785) "Ueber die Phosphorsäure im Zschopauer grünen Bleyspathe" (On phosphoric acid in green lead spar from Zschopau), Beyträge zu den chemischen Annalen, 1 (1) :  13–21. <a href="https://books.google.com/books?id=NYjBkHlP7CIC&pg=RA1-PA13" target="_blank">https://books.google.com/books?id=NYjBkHlP7CIC&pg=RA1-PA13</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li>
<li id="fn:7"><p>LXXXVII. Chemische Untersuchung der phosphorsauren Bleierze: I. Zeisiggrünes Bleierz von Zschopau. (87. Chemical investigation of the lead ores [containing] phosphoric acid: I. Siskin-green lead ore from Zschopau) in: Klaproth, Martin Heinrich, Beiträge zur chemischen Kenntnis der Mineralkörper [Contributions to our chemical knowledge of minerals]. Vol. 3. Posen, (Germany): Decker und Co.; Berlin, Germany: Heinrich August Rottmann. 1802. pp. 146–153. <a href="https://books.google.com/books?id=8A8KAAAAIAAJ&pg=PA146" target="_blank">https://books.google.com/books?id=8A8KAAAAIAAJ&pg=PA146</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li>
<li id="fn:8"><p>Dr. Thomas Witzke. "Entdeckung von Pyromorphit (Discovery of pyromorphite)" (in German). <a href="http://tw.strahlen.org/typloc/pyromorphit.html" target="_blank">http://tw.strahlen.org/typloc/pyromorphit.html</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li>
<li id="fn:9"><p>Hausmann, Johann Friedrich Ludwig (1813). Handbuch der Mineralogie. Göttingen, Germany: Vandenhoeck und Ruprecht. pp. 1090–1093. <a href="https://babel.hathitrust.org/cgi/pt?id=nyp.33433062733062;view=1up;seq=1114" target="_blank">https://babel.hathitrust.org/cgi/pt?id=nyp.33433062733062;view=1up;seq=1114</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li>
<li id="fn:10"><p>Chester, Albert Huntington (1896). A Dictionary of the Names of Minerals Including Their History and Etymology. New York, New York: John Wiley & Sons. p. 224. <a href="https://books.google.com/books?id=IiwFAAAAMAAJ&pg=PA224" target="_blank">https://books.google.com/books?id=IiwFAAAAMAAJ&pg=PA224</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li>
<li id="fn:11"><p>"Pyromorphite". Webmineral data. <a href="http://webmineral.com/data/Pyromorphite.shtml" target="_blank">http://webmineral.com/data/Pyromorphite.shtml</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li>
<li id="fn:12"><p>Rhee, Young Joon; Hillier, Stephen; Pendlowskic, Helen; Gadd, Geoffrey Michael (October 2014). "Fungal transformation of metallic lead to pyromorphite in liquid medium". Chemosphere. 113: 17–21. Bibcode:2014Chmsp.113...17R. doi:10.1016/j.chemosphere.2014.03.085. PMID 25065784. Retrieved 2024-11-12. <a href="/wiki/Geoffrey_Michael_Gadd" target="_blank">/wiki/Geoffrey_Michael_Gadd</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li>
<li id="fn:13"><p>A. Bishop; A. Woolley; W. Hamilton (1999). Cambridge Guide to Minerals, Rocks and Fossils. Cambridge University Press. p. 88. ISBN 978-0-521-77881-7. <a href="978-0-521-77881-7" target="_blank">978-0-521-77881-7</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li>
</ol>

Pyromorphite open-in-new

Pyromorphite