py·ro·mor·phite

(pī′rə-môr′fīt′)

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)

(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]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

pyromorphite - a mineral consisting of lead chloride and phosphate; a minor source of lead

green lead ore

mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition

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References in periodicals archive

Fungal transformation of metallic lead to pyromorphite in liquid Medium.

Microorganismos tolerantes a metales pesados del pasivo minero Santa Rosa, Jangas (Peru)

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).

Mineria prehistorica en gran Bretana: el estudio de herramientas mineras liticas a partir de estudios artefactuales, etnografia y experimentacion

[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.

Aliphatic, cyclic, and aromatic organic acids, vitamins, and carbohydrates in soil: a review

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.

Springfield show 2010

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.

Role of inorganic and organic soil amendments on immobilisation and phytoavailability of heavy metals: a review involving specific case studies

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.

Remediating soil lead with fish bones

These include arsentsumebite, tsumebite, corkite, fornacite, duftite, caledonite, kettnerite, linarite, leadhillite, brochantite, mimetite, pyromorphite, vanadinite and wulfenite.

The Brown Monster and Reward mines: Inyo County California