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Melilite

Melilite refers to a mineral of the melilite group. Minerals of the group are solid solutions of several endmembers, the most important of which are gehlenite and åkermanite. A generalized formula for common melilite is (Ca,Na)2(Al,Mg,Fe2+). Discovered in 1793 near Rome, it has a yellowish, greenish-brown color. The name derives from the Greek words meli…

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Birefringence
δ = 0.006 – 0.011
Category
Sorosilicates
Cleavage
Distinct on {001}, weak on {110}
Color
Yellowish, greenish brown
Crystal habit
Massive – granular
Crystal system
Tetragonal

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Overview

Occurrences

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Map overview Semantic statistics

Melilite

Nodes57
Edges56
Triples24
Avg. degree1.96
Density0.035088
Components1

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Melilite

Top relations

related to Occurrences · 3
Melilite → For, It, Typical
is a · 2
Melilite → constituent of some calcium, essential constituent in some rare igneous rocks
Birefringence · 1
Melilite → δ = 0.006 – 0.011
Category · 1
Melilite → Sorosilicates
Cleavage · 1
Melilite → Distinct on {001}, weak on {110}
Color · 1
Melilite → Yellowish, greenish brown
Crystal habit · 1
Melilite → Massive – granular
Crystal system · 1
Melilite → Tetragonal
Diaphaneity · 1
Melilite → Translucent
Formula · 1
Melilite → .mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-suspan{display:block;text-align:l…

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Important terminology

minerals group al ca na structure formula igneous mg si rocks may gehlenite fe2 endmembers together also mineral åkermanite cations

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MeliliteBirefringenceδ = 0.006 – 0.0111.00infobox
MeliliteCategorySorosilicates1.00infobox
MeliliteCleavageDistinct on {001}, weak on {110}1.00infobox
MeliliteColorYellowish, greenish brown1.00infobox
MeliliteCrystal habitMassive – granular1.00infobox
MeliliteCrystal systemTetragonal1.00infobox
MeliliteDiaphaneityTranslucent1.00infobox
MeliliteFormula.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l…1.00infobox
MeliliteFractureUneven1.00infobox
MeliliteLusterVitreous – greasy1.00infobox
MeliliteMohs scale hardness5–5.51.00infobox
MeliliteOptical propertiesUniaxial (−)1.00infobox
MeliliteRefractive indexnω = 1.632 – 1.669 nε = 1.626 – 1.6581.00infobox
MeliliteSpace groupP421m (no. 113)1.00infobox
MeliliteSpecific gravity2.9–3.01.00infobox
MeliliteStreakwhite1.00infobox
MeliliteStrunz classification9.BB.**1.00infobox
Meliliteis aessential constituent in some rare igneous rocks0.90text
Meliliteis aconstituent of some calcium0.90text

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