Gmelinite

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Environment

Volcanic rocks Basalts Breccias Analcime Natrolite

10 related topics

Notable localities

Phonolite Dawsonite Quartz Aragonite Calcite

5 related topics

Distribution

Type Locality Montecchio Maggiore

2 related topics

Structure

Tetrahedra

1 related topics

Key facts & relationships

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Birefringence: δ = 0.002 - 0.014
Category: Tectosilicate minerals
Cleavage: Good on {1010}
Color: Colorless, white, yellow, orange, pale green, pink, red, brown and grey
Crystal class: Dihexagonal dipyramidal (6mmm) H-M symbol: (6/m 2/m 2/m)
Crystal habit: Hexagonal plates, or short prisms, showing hexagonal dipyramids, pyramids and basal pinacoid. {1010}, {1011} and {0001} dominant. May also be tabular or rhombohedral. Crystals a…

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Overview

Structure

Tetrahedra

Environment

Notable localities

Distribution

Type Locality Type locality (geology)
Montecchio Maggiore

Advanced semantic analysis

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Map overview Semantic statistics

Nodes29

Edges28

Triples64

Avg. degree1.93

Density0.068966

Components1

How this topic connects Entity context

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Gmelinite

Top relations

related to Environment · 23

Gmelinite → Al, Ca, Generally, H2O, It, Na, Na-rich, Na2, Na2AlSi3O8, Na2Ca, Na5, No, O10, O24, O32, O6, OH, Si, Si-poor, Si11Al5

related to Notable localities · 11

Gmelinite → Associated, Canada, CO3, Francon Quarry, Gmelinite-Na, It, Montreal, Na, NaAl, OH, Western Tasmania

Birefringence · 1

Gmelinite → δ = 0.002 - 0.014

Category · 1

Gmelinite → Tectosilicate minerals

Cleavage · 1

Gmelinite → Good on {1010}

Color · 1

Gmelinite → Colorless, white, yellow, orange, pale green, pink, red, brown and grey

Crystal class · 1

Gmelinite → Dihexagonal dipyramidal (6mmm) H-M symbol: (6/m 2/m 2/m)

Crystal habit · 1

Gmelinite → Hexagonal plates, or short prisms, showing hexagonal dipyramids, pyramids and basal pinacoid. {1010}, {1011} and {0001} dominant. May also be tabular or rhombohedral. Crystals a…

Crystal system · 1

Gmelinite → Hexagonal

Dana classification · 1

Gmelinite → 77.1.2.6

Important terminology Word statistics

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Important terminology

gmelinite-na mineral white chabazite also minerals zeolite occurs series structure piezoelectric parallel zeolites common crystals pyramids colorless pale yellow orange

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
Gmelinite	Birefringence	δ = 0.002 - 0.014	1.00	infobox
Gmelinite	Category	Tectosilicate minerals	1.00	infobox
Gmelinite	Cleavage	Good on {1010}	1.00	infobox
Gmelinite	Color	Colorless, white, yellow, orange, pale green, pink, red, brown and grey	1.00	infobox
Gmelinite	Crystal class	Dihexagonal dipyramidal (6mmm) H-M symbol: (6/m 2/m 2/m)	1.00	infobox
Gmelinite	Crystal habit	Hexagonal plates, or short prisms, showing hexagonal dipyramids, pyramids and basal pinacoid. {1010}, {1011} and {0001} dominant. May also be tabular or rhombohedral. Crystals a…	1.00	infobox
Gmelinite	Crystal system	Hexagonal	1.00	infobox
Gmelinite	Dana classification	77.1.2.6	1.00	infobox
Gmelinite	Diaphaneity	Transparent, translucent or opaque	1.00	infobox
Gmelinite	Formula	.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…	1.00	infobox
Gmelinite	Formula mass	2,000.77 g	1.00	infobox
Gmelinite	Fracture	Conchoidal	1.00	infobox
Gmelinite	Group	Zeolite group	1.00	infobox
Gmelinite	IMA symbol	Gmelinite-Na: Gme-Na	1.00	infobox
Gmelinite	Luster	Dull to vitreous	1.00	infobox
Gmelinite	Mohs scale hardness	.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de…	1.00	infobox
Gmelinite	Optical properties	Uniaxial (-)	1.00	infobox
Gmelinite	Other characteristics	Piezoelectric. Barely detectable radioactivity. As with all zeolites, water is released on heating, and almost all has been expelled by 400 °C.	1.00	infobox
Gmelinite	Refractive index	nω = 1.476 - 1.494, nε = 1.474 - 1.480	1.00	infobox
Gmelinite	Solubility	Soluble in cold 10% HCl.	1.00	infobox
Gmelinite	Space group	P63/mmc	1.00	infobox
Gmelinite	Specific gravity	2.04 to 2.17	1.00	infobox
Gmelinite	Streak	White	1.00	infobox
Gmelinite	Strunz classification	9.GD.05 (10 ed) 8/J.26-50 (8 ed)	1.00	infobox
Gmelinite	Tenacity	Brittle	1.00	infobox
Gmelinite	Twinning	Interpenetrant twins common on {1011}. The twins consist of four individuals, three are at 90° to the other and at 60° to each other	1.00	infobox
Gmelinite	Unit cell	a = 13.78, c = 10.03 [Å]; Z = 4	1.00	infobox
Gmelinite	is a	series of rare zeolite minerals	0.90	text

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