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Epidote

Epidote is a calcium aluminium iron sorosilicate mineral.

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Key facts & relationships

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Birefringence
δ = 0.019–0.046
Category
Sorosilicates
Cleavage
{001} perfect and {100} imperfect
Color
Pistachio green, yellow-green, greenish black, brownish-green, green, black
Crystal class
Prismatic (2/m) (same H–M symbol)
Crystal habit
Prismatic with striations, fibrous, massive

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Overview

Description

Gallery

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Map overview Semantic statistics

Epidote

Nodes80
Edges79
Triples73
Avg. degree1.98
Density0.025
Components1

How this topic connects Entity context

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Epidote

Top relations

related to Description · 30
Epidote → Al, Ala, Alaska, Arendal, Ca2Al2, Clinozoisite, Connecticut, Dauphiné, Fe3, Greek, Großvenediger, Haddam, Haüy, It, Knappenwand, Le Bourg-d'Oisans, Many, Norway, OH, Piedmont
related to Gallery · 10
Epidote → France, FranceEpidote, GermanyEpidote, Itogon, Lima, PakistanEpidote, PeruEpidote, PhilippinesAmygdaloidal, RussiaEpidote, Vesicular
related to Related species · 9
Epidote → Belonging, Egyptian, Ivrea, Japan, Piedmont, Piemontite, REE-rich, San Marcel, The
is a · 2
Epidote → abundant rock-forming mineral, calcium aluminium iron sorosilicate mineral
related to External links · 2
Epidote → Epidote Mineral Galleries, The
Birefringence · 1
Epidote → δ = 0.019–0.046
Category · 1
Epidote → Sorosilicates
Cleavage · 1
Epidote → {001} perfect and {100} imperfect
Color · 1
Epidote → Pistachio green, yellow-green, greenish black, brownish-green, green, black
Crystal class · 1
Epidote → Prismatic (2/m) (same H–M symbol)

Important terminology Word statistics

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Important terminology

mineral green crystals allanite color prismatic group monoclinic iron pleochroism many species crystal black habit optical strong references name one

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
EpidoteBirefringenceδ = 0.019–0.0461.00infobox
EpidoteCategorySorosilicates1.00infobox
EpidoteCleavage{001} perfect and {100} imperfect1.00infobox
EpidoteColorPistachio green, yellow-green, greenish black, brownish-green, green, black1.00infobox
EpidoteCrystal classPrismatic (2/m) (same H–M symbol)1.00infobox
EpidoteCrystal habitPrismatic with striations, fibrous, massive1.00infobox
EpidoteCrystal systemMonoclinic1.00infobox
EpidoteDiaphaneityTransparent to nearly opaque1.00infobox
EpidoteFormula{Ca2}{Al2Fe3+}(SiO4)(Si2O7)O(OH)1.00infobox
EpidoteFractureFlat regular to uneven1.00infobox
EpidoteIMA symbolEp1.00infobox
EpidoteLusterVitreous to resinous1.00infobox
EpidoteMohs scale hardness6–71.00infobox
EpidoteOptical propertiesBiaxial (-)1.00infobox
EpidotePleochroismStrong1.00infobox
EpidoteRefractive indexnα = 1.715–1.751 nβ = 1.725–1.784 nγ = 1.734–1.7971.00infobox
EpidoteSpace groupP21/m1.00infobox
EpidoteSpecific gravity3.38–3.491.00infobox
EpidoteStreakGreyish white1.00infobox
EpidoteTwinningOn1.00infobox
Epidoteis acalcium aluminium iron sorosilicate mineral0.90text
Epidoteis aabundant rock-forming mineral0.90text

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