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Pyromorphite

Pyromorphite is a mineral species composed of lead chlorophosphate: Pb5(PO4)3Cl, sometimes occurring in sufficient abundance to be mined as an ore of lead. Crystals are common, and have the form of a hexagonal prism terminated by the basal planes, sometimes combined with narrow faces of a hexagonal pyramid. Crystals with a barrel-like curvature are not…

History, Isomorphism & Biology

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Isomorphism

IsomorphousPhosphorusCalciumStříbroBohemia
12 related topics

History

M. H. KlaprothJ. F. L. Hausmann
2 related topics

Biology

Paecilomyces javanicusFungusBiominerals
3 related topics

Gallery

CerussiteCaledoniteLead ore
3 related topics

Key facts & relationships

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Birefringence
δ = 0.010
Category
Phosphate mineral Apatite group
Cleavage
Imperfect-
Color
Dark green to grass-green or green, yellow, yellow-orange, reddish orange, yellow-brown, greenish-yellow or yellowish-green, shades of brown, tan, grayish, white and may be colo…
Crystal class
Dipyramidal (6/m) (same H-M symbol)
Crystal habit
Prismatic to acicular crystals, globular to reniform

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Overview

History

Properties

Isomorphism

Biology

Gallery

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Map overview Semantic statistics

Pyromorphite

Nodes39
Edges38
Triples56
Avg. degree1.95
Density0.051282
Components1

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Pyromorphite

Top relations

related to Isomorphism · 13
Pyromorphite → Beaujeu, Bohemia, Cherokee County, Chénelette, France, Georgia, German, Mies, Nuizière, Owing, Rhône, Stříbro, Varieties
related to External links · 6
Pyromorphite → Cambridge University Press, Chisholm, Encyclopædia Britannica, Hugh, This, Vol
related to Gallery · 6
Pyromorphite → ChinaGreen, ChinaMiniature, Daoping Mine, Guangxi Zhuang Autonomous Region, Leadhills, Seams
related to history · 4
Pyromorphite → Greek, Hausmann, Klaproth, The
Birefringence · 1
Pyromorphite → δ = 0.010
Category · 1
Pyromorphite → Phosphate mineral Apatite group
Cleavage · 1
Pyromorphite → Imperfect-
Color · 1
Pyromorphite → Dark green to grass-green or green, yellow, yellow-orange, reddish orange, yellow-brown, greenish-yellow or yellowish-green, shades of brown, tan, grayish, white and may be colo…
Crystal class · 1
Pyromorphite → Dipyramidal (6/m) (same H-M symbol)
Crystal habit · 1
Pyromorphite → Prismatic to acicular crystals, globular to reniform

Important terminology Word statistics

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Important terminology

crystals lead mineral ore green pb5 3cl apatite form color globular brown crystal yellow may sometimes close resemblance hexagonal also

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
PyromorphiteBirefringenceδ = 0.0101.00infobox
PyromorphiteCategoryPhosphate mineral Apatite group1.00infobox
PyromorphiteCleavageImperfect-1.00infobox
PyromorphiteColorDark green to grass-green or green, yellow, yellow-orange, reddish orange, yellow-brown, greenish-yellow or yellowish-green, shades of brown, tan, grayish, white and may be colo…1.00infobox
PyromorphiteCrystal classDipyramidal (6/m) (same H-M symbol)1.00infobox
PyromorphiteCrystal habitPrismatic to acicular crystals, globular to reniform1.00infobox
PyromorphiteCrystal systemHexagonal1.00infobox
PyromorphiteDiaphaneityTransparent to translucent1.00infobox
PyromorphiteFormulaPb5(PO4)3Cl1.00infobox
PyromorphiteFractureUneven to sub-conchoidal1.00infobox
PyromorphiteIMA symbolPym1.00infobox
PyromorphiteLusterResinous to subadamantine1.00infobox
PyromorphiteMohs scale hardness3.5–41.00infobox
PyromorphiteOptical propertiesUniaxial (−) May be anomalously biaxial (−)1.00infobox
PyromorphiteOther characteristicsPiezoelectric if biaxial1.00infobox
PyromorphitePleochroismWeak1.00infobox
PyromorphiteRefractive indexnω = 2.058 nε = 2.0481.00infobox
PyromorphiteSpace groupP63/m1.00infobox
PyromorphiteSpecific gravity7.04 measured, 7.14 calculated1.00infobox
PyromorphiteStreakWhite1.00infobox
PyromorphiteStrunz classification8.BN.051.00infobox
PyromorphiteTenacityBrittle1.00infobox
PyromorphiteTwinningRarely on {1122}1.00infobox
PyromorphiteUltraviolet fluorescenceMay fluoresce yellow to orange under LW and SW UV1.00infobox
Pyromorphiteis amineral species composed of lead chlorophosphate0.90text

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