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Papagoite

Papagoite is a rare cyclosilicate mineral. Chemically, it is a calcium copper aluminium silicate hydroxide, found as a secondary mineral on slip surfaces and in altered granodiorite veins, either in massive form or as microscopic crystals that may form spherical aggregates. Its chemical formula is Ca Cu Al Si2O6(O H)3.

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Overview

21 related topics

Key facts & relationships

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2V angle
Measured: 78°
Birefringence
δ = 0.065
Category
Cyclosilicate
Cleavage
Imperfect in one direction
Color
Dark blue crystals, light blue when massive
Crystal class
Prismatic (2/m) (same H-M symbol)

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Overview

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Papagoite

Nodes23
Edges22
Triples26
Avg. degree1.91
Density0.086957
Components1

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Papagoite

Top relations

related to References · 4
Papagoite → Ajo, Arizona, Limpopo Province, South Africa
2V angle · 1
Papagoite → Measured: 78°
Birefringence · 1
Papagoite → δ = 0.065
Category · 1
Papagoite → Cyclosilicate
Cleavage · 1
Papagoite → Imperfect in one direction
Color · 1
Papagoite → Dark blue crystals, light blue when massive
Crystal class · 1
Papagoite → Prismatic (2/m) (same H-M symbol)
Crystal habit · 1
Papagoite → Massive; cryptocrystalline, forming flat elongated crystals
Crystal system · 1
Papagoite → Monoclinic
Formula · 1
Papagoite → CaCuAlSi2O6(OH)3

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Important terminology

copper arizona south africa mineral cyclosilicate found united states also namibia massive crystals formula blue color quartz references ajo native

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
Papagoite2V angleMeasured: 78°1.00infobox
PapagoiteBirefringenceδ = 0.0651.00infobox
PapagoiteCategoryCyclosilicate1.00infobox
PapagoiteCleavageImperfect in one direction1.00infobox
PapagoiteColorDark blue crystals, light blue when massive1.00infobox
PapagoiteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
PapagoiteCrystal habitMassive; cryptocrystalline, forming flat elongated crystals1.00infobox
PapagoiteCrystal systemMonoclinic1.00infobox
PapagoiteFormulaCaCuAlSi2O6(OH)31.00infobox
PapagoiteFractureBrittle1.00infobox
PapagoiteIMA symbolPap1.00infobox
PapagoiteLusterVitreous to dull1.00infobox
PapagoiteMohs scale hardness5–5.51.00infobox
PapagoiteOptical propertiesBiaxial (-)1.00infobox
PapagoitePleochroismTrichroic1.00infobox
PapagoiteRefractive indexnα = 1.607 nβ = 1.641 nγ = 1.6721.00infobox
PapagoiteSpace groupC2/m1.00infobox
PapagoiteSpecific gravity3.251.00infobox
PapagoiteStreakLight blue1.00infobox
PapagoiteStrunz classification9.CE.051.00infobox
PapagoiteUnit cella = 12.92 Å, b = 11.49 Å, c = 4.69 Å; β = 100.81°; Z = 41.00infobox
Papagoiteis arare cyclosilicate mineral0.90text

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