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Trona

Trona (trisodium hydrogendicarbonate dihydrate, also sodium sesquicarbonate dihydrate, Na2CO3·NaHCO3·2H2O) is a non-marine evaporite mineral. It is mined as the primary source of sodium carbonate in the United States, where it has replaced the Solvay process used in most of the rest of the world for sodium carbonate production. Turkey is also a major…

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Birefringence
δ = 0.128
Category
Carbonate mineral
Cleavage
perfect, and indistinct
Color
Colorless (in transmitted light) or white, grey-white, also grey to yellowish grey, light yellow
Crystal class
Prismatic (2/m) (same H-M symbol)
Crystal habit
Columnar, fibrous and massive.

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Overview

Etymology

Natural deposits

Crystal structure

Uses

Mining operations

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Map overview Semantic statistics

Trona

Nodes80
Edges79
Triples75
Avg. degree1.98
Density0.025
Components1

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Trona

Top relations

related to Natural deposits · 36
Trona → Ankara Province, Botswana, California, Egypt, Etosha National Park, Green River, Green River Formation, Henan Province China, It, Jean-Baptiste Boussingault, Kenyan Rift Valley, Laguna, Lagunillas, Lake Magadi, Lake Natron, Lower Hirka Formation, Makgadikgadi Pans, Mariano Eduardo, Mérida, Namibia
related to Etymology · 9
Trona → Ancient Egyptian, Arabic, Both, English, Greek, North Africa, Spanish, Swedish, The
related to Crystal structure · 8
Trona → Bacon, Brown, Choi, Curry, HC2O6, Mighell, O'Bannon, The
Birefringence · 1
Trona → δ = 0.128
Category · 1
Trona → Carbonate mineral
Cleavage · 1
Trona → perfect, and indistinct
Color · 1
Trona → Colorless (in transmitted light) or white, grey-white, also grey to yellowish grey, light yellow
Crystal class · 1
Trona → Prismatic (2/m) (same H-M symbol)
Crystal habit · 1
Trona → Columnar, fibrous and massive.
Crystal system · 1
Trona → Monoclinic

Important terminology Word statistics

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Important terminology

also sodium crystal lake used turkey mineral structure carbonate 15 natron wyoming evaporite solvay na2co3 nahco3 2h2o mined references green

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
TronaBirefringenceδ = 0.1281.00infobox
TronaCategoryCarbonate mineral1.00infobox
TronaCleavageperfect, and indistinct1.00infobox
TronaColorColorless (in transmitted light) or white, grey-white, also grey to yellowish grey, light yellow1.00infobox
TronaCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
TronaCrystal habitColumnar, fibrous and massive.1.00infobox
TronaCrystal systemMonoclinic1.00infobox
TronaDiaphaneityTranslucent1.00infobox
TronaFormulaNa2CO3·NaHCO3·2H2O1.00infobox
TronaFractureBrittle – subconchoidal1.00infobox
TronaIMA symbolTn1.00infobox
TronaLusterVitreous1.00infobox
TronaMohs scale hardness2.51.00infobox
TronaOptical propertiesBiaxial (−)1.00infobox
TronaOther characteristicsMay fluoresce under short wavelength ultraviolet1.00infobox
TronaRefractive indexnα = 1.412 nβ = 1.492 nγ = 1.5401.00infobox
TronaSolubilitySoluble in water1.00infobox
TronaSpace groupC2/c (no. 15)1.00infobox
TronaSpecific gravity2.11–2.171.00infobox
TronaStreakWhite1.00infobox
TronaStrunz classification5.CB.151.00infobox

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