Polyhalite

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Extraction

North Sea Boulby Mine ICL Group Ltd.Polysulphate Sirius Minerals

7 related topics

Overview

Evaporite Sulfate Potassium Calcium Magnesium

16 related topics

Name

Ancient Greek Halite Salts

3 related topics

Key facts & relationships

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2V angle: Measured: 60° to 62°
Birefringence: δ = 0.021
Category: Sulfate mineral
Cleavage: Perfect on {101}; parting on {010}
Color: Colorless, white, gray; often salmon-pink to brick-red from included iron oxide
Crystal class: Pinacoidal (1) (same H-M symbol)

Topics to explore

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Overview

Name

Ancient Greek
Halite
Salts Salt (chemistry)

Extraction

Advanced semantic analysis

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Map overview Semantic statistics

Nodes30

Edges29

Triples53

Avg. degree1.93

Density0.066667

Components1

How this topic connects Entity context

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Polyhalite

Top relations

related to Extraction · 16

Polyhalite → Anglo American, Boulby Mine, Europe, ICL Group Ltd, In, In March, North Sea, North Yorkshire, Polysulphate, Sirius Minerals, The, The Woodsmith, These, UK, Woodsmith, Woodsmith Mine

related to Name · 8

Polyhalite → Ancient Greek, Despite, English, German, German Polyhalit, Greek, Latin, The

related to Composition and use · 4

Polyhalite → CaO, K2O, MgO, SO3

2V angle · 1

Polyhalite → Measured: 60° to 62°

Birefringence · 1

Polyhalite → δ = 0.021

Category · 1

Polyhalite → Sulfate mineral

Cleavage · 1

Polyhalite → Perfect on {101}; parting on {010}

Color · 1

Polyhalite → Colorless, white, gray; often salmon-pink to brick-red from included iron oxide

Crystal class · 1

Polyhalite → Pinacoidal (1) (same H-M symbol)

Crystal habit · 1

Polyhalite → Typically fibrous, foliated, massive; rarely as tabular crystals; pseudo-orthorhombic

Important terminology Word statistics

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Important terminology

mineral used also salt sulfate potassium triclinic woodsmith help first although habit water formula k2ca2mg so4 2h2o system crystals massive

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
Polyhalite	2V angle	Measured: 60° to 62°	1.00	infobox
Polyhalite	Birefringence	δ = 0.021	1.00	infobox
Polyhalite	Category	Sulfate mineral	1.00	infobox
Polyhalite	Cleavage	Perfect on {101}; parting on {010}	1.00	infobox
Polyhalite	Color	Colorless, white, gray; often salmon-pink to brick-red from included iron oxide	1.00	infobox
Polyhalite	Crystal class	Pinacoidal (1) (same H-M symbol)	1.00	infobox
Polyhalite	Crystal habit	Typically fibrous, foliated, massive; rarely as tabular crystals; pseudo-orthorhombic	1.00	infobox
Polyhalite	Crystal system	Triclinic	1.00	infobox
Polyhalite	Diaphaneity	Transparent	1.00	infobox
Polyhalite	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
Polyhalite	Fracture	Conchoidal	1.00	infobox
Polyhalite	IMA symbol	Plhl	1.00	infobox
Polyhalite	Luster	Vitreous to resinous	1.00	infobox
Polyhalite	Mohs scale hardness	3.5	1.00	infobox
Polyhalite	Optical properties	Biaxial (−)	1.00	infobox
Polyhalite	Refractive index	nα = 1.546 – 1.548 nβ = 1.558 – 1.562 nγ = 1.567	1.00	infobox
Polyhalite	Solubility	Soluble in water, with precipitation of gypsum and perhaps syngenite	1.00	infobox
Polyhalite	Space group	F1	1.00	infobox
Polyhalite	Specific gravity	2.78	1.00	infobox
Polyhalite	Streak	White	1.00	infobox
Polyhalite	Strunz classification	7.CC.65	1.00	infobox
Polyhalite	Tenacity	Brittle	1.00	infobox
Polyhalite	Twinning	Characteristically polysynthetic on {010}, {100}	1.00	infobox
Polyhalite	Unit cell	a = 6.95 Å, b = 8.88 Å, c = 6.95 Å; α = 104.06°, β = 113.94°, γ = 101.15°; Z = 4	1.00	infobox
Polyhalite	is a	evaporite mineral	0.90	text

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