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Libethenite

Libethenite is a rare copper phosphate hydroxide mineral. It forms striking, dark green orthorhombic crystals. It was discovered in 1823 in Ľubietová, Slovakia and is named after the German name of that locality (Libethen). Libethenite has also been found in the Miguel Vacas Mine, Conceição, Vila Viçosa, Évora District, Portugal, and in Tier des…

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Overview & Formation

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Key facts & relationships

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Category
Phosphate minerals
Cleavage
Indistinct on and
Color
Light to dark green, blackish green, olive-green
Crystal class
Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit
Globular, druzy, slender prismatic
Crystal system
Orthorhombic

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Overview

Formation

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Map overview Semantic statistics

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Libethenite

Nodes24
Edges23
Triples25
Avg. degree1.92
Density0.083333
Components1

How this topic connects Entity context

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Libethenite

Top relations

related to Formation · 2
Libethenite → It, There
Category · 1
Libethenite → Phosphate minerals
Cleavage · 1
Libethenite → Indistinct on and
Color · 1
Libethenite → Light to dark green, blackish green, olive-green
Crystal class · 1
Libethenite → Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit · 1
Libethenite → Globular, druzy, slender prismatic
Crystal system · 1
Libethenite → Orthorhombic
Formula · 1
Libethenite → Cu2PO4OH
Fracture · 1
Libethenite → Irregular, uneven to conchoidal
IMA symbol · 1
Libethenite → Lib

Important terminology Word statistics

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Important terminology

orthorhombic phosphate crystals found dark green copper references hydroxide ľubietová slovakia conceição portugal cahai vielsaim belgium often rare mineral forms

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
LibetheniteCategoryPhosphate minerals1.00infobox
LibetheniteCleavageIndistinct on and1.00infobox
LibetheniteColorLight to dark green, blackish green, olive-green1.00infobox
LibetheniteCrystal classDipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)1.00infobox
LibetheniteCrystal habitGlobular, druzy, slender prismatic1.00infobox
LibetheniteCrystal systemOrthorhombic1.00infobox
LibetheniteFormulaCu2PO4OH1.00infobox
LibetheniteFractureIrregular, uneven to conchoidal1.00infobox
LibetheniteIMA symbolLib1.00infobox
LibetheniteLusterVitreous, greasy1.00infobox
LibetheniteMohs scale hardness41.00infobox
LibetheniteOptical propertiesBiaxial (−)1.00infobox
LibetheniteRefractive indexnα = 1.701 – 1.704 nβ = 1.743 – 1.747 nγ = 1.787 – 1.7901.00infobox
LibetheniteSpace groupPnnm1.00infobox
LibetheniteSpecific gravity3.6 – 4, Average = 3.81.00infobox
LibetheniteStreaklight green1.00infobox
LibetheniteStrunz classification8.BB.301.00infobox
LibetheniteTenacityBrittle1.00infobox
Libetheniteis arare copper phosphate hydroxide mineral0.90text

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