pyromorphite


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Related to pyromorphite: Mimetite

py·ro·mor·phite

 (pī′rə-môr′fīt′)
n.
A green, brown, or yellow mineral, Pb5(PO4)3Cl, a minor ore of lead.

[German Pyromorphit : Greek puro-, pyro- + Greek morphē, form.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pyromorphite

(ˌpaɪrəʊˈmɔːfaɪt)
n
(Minerals) a green, yellow, brown, or grey secondary mineral that consists of lead chloro-phosphate in the form of hexagonal crystals. Formula: Pb5Cl(PO4)3
[C19: from German Pyromorphit, from pyro- + Greek morphē form + -ite1, an allusion to the fact that it assumes a crystalline form when heated]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

py•ro•mor•phite

(ˌpaɪ rəˈmɔr faɪt)

n.
a mineral, lead chlorophosphate-arsenate, Pb5(PO4AsO4)3Cl, occurring in transparent crystals and globular aggregates: a minor ore of lead.
[1805–15; < German Pyromorphit]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pyromorphite - a mineral consisting of lead chloride and phosphate; a minor source of lead
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Fungal transformation of metallic lead to pyromorphite in liquid Medium.
Compared to Pb[(OH).sub.2], pyromorphite has a much lower solubility and a greater capacity to resist acid or alkaline attack [52, 53].
Moreover, in TEM images it is easy to observe the formation of a new phase (pyromorphite) with a plate-like morphology (especially in the case of HApTh-450 samples).
Prior to the Bronze Age the site may also have been an important source of colourful pigments in the form of yellow pyromorphite, black manganese wad, and of green and blue copper carbonates; something which might be indicated by the presence of Mesolithic hunting camps close to the possible sites of mineral extraction (Timberlake 2009).
[64] reported the release of Pb from pyromorphite [[Pb.sub.5][(P[O.sub.4]).sub.3]Cl] by citric, malic, acetic, and oxalic acids.
I saw thumbnails from Franklin, New Jersey and from Maine, Germany, Switzerland and other desirable places; hematite roses from the Alps and pyromorphite from Germany and Pennsylvania come to mind especially.
Many investigators have provided conclusive evidence for the ability of phosphate to immobilise dissolved Pb in contaminated soils through precipitation as fluoropyromorphite, pyromorphite, hydroxypyromorphite, and chloropyromorphite, and as hopeite in the case of Zn (Bolan et al.
While the [Ca.sup.2+] and [Pb.sup.2+] compounds are isostructural, they are in separate series due to the difficulty of substituting Pb for Ca in the apatite series or of substituting Ca for Pb in the pyromorphite series [25].
Fish bones are made of the phosphate mineral apatite, which readily combines with lead to form pyromorphite, a stable crystalline mineral that can't be absorbed by the human digestive system.(1,2) Now researchers are using fish bones and other phosphate-rich amendments to remediate lead in urban soils.
These include arsentsumebite, tsumebite, corkite, fornacite, duftite, caledonite, kettnerite, linarite, leadhillite, brochantite, mimetite, pyromorphite, vanadinite and wulfenite.