Langbeinite

"K-Mag" redirects here. For other uses, see KMAG (disambiguation).
Langbeinite
General
CategorySulfate mineral
Formula
(repeating unit)		K2Mg2(SO4)3
IMA symbolLbn[1]
Strunz classification7.AC.10
Crystal systemCubic
Crystal classTetartoidal (23)
(same H-M symbol)
Space groupP213
Unit cella = 9.92 Å; Z = 4
Identification
ColorColorless with pale shades of yellow, pink, red, green, gray
Crystal habitAs nodules, disseminated grains, bedded massive
FractureConchoidal
TenacityBrittle
Mohs scale hardness3.5–4
LusterVitreous
DiaphaneityTransparent
Specific gravity2.83
Optical propertiesIsotropic
Refractive indexn = 1.5329–1.5347
Solubility280 g/L (20°C);[2] Slowly dissolves in water[3]
Other characteristicsPiezoelectric
References[4][5][6]

Langbeinite is a potassium magnesium sulfate mineral with the chemical formula K2Mg2(SO4)3. Langbeinite crystallizes in the isometric-tetartoidal (cubic) system as transparent colorless or white with pale tints of yellow to green and violet crystalline masses. It has a vitreous luster. The Mohs hardness is 3.5 to 4 and the specific gravity is 2.83. The crystals are piezoelectric.[4]

The mineral is an ore of potassium and occurs in marine evaporite deposits in association with carnallite, halite, and sylvite.[4]

It was first described in 1891 for an occurrence in Wilhelmshall, Halberstadt, Saxony-Anhalt, Germany, and named for A. Langbein of Leopoldshall, Germany.[4][5]

Langbeinite gives its name to the langbeinites, a family of substances with the same cubic structure, a tetrahedral anion, and large and small cations.

Related substances include hydrated salts leonite (K2Mg(SO4)2·4H2O) and picromerite (K2Mg(SO4)2·6H2O).

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Artiola, Janick F.; Gebrekidan, Heluf; Carty, David J. (October 2000). "Use of langbeinite to reclaim sodic and saline sodic soils". Communications in Soil Science and Plant Analysis. 31 (17–18): 2829–2842. Bibcode:2000CSSPA..31.2829A. doi:10.1080/00103620009370631. S2CID 95055306.
  3. ^ Harley, G. T.; Atwood, G. E. (January 1947). "Langbeinite... Mining and processing". Industrial & Engineering Chemistry. 39 (1): 43–47. doi:10.1021/ie50445a020.
  4. ^ a b c d Handbook of Mineralogy
  5. ^ a b Mindat with location data
  6. ^ Webmineral data


This article about a specific sulfate mineral is a stub. You can help Wikipedia by expanding it.

Read other articles:

Mesin permainan

Pengembangan sebuah permainan balap menggunakan Blender Game Engine Mesin permainan adalah sistem perangkat lunak yang dirancang untuk menjadi dasar pengembangan permainan video, seperti permainan di komputer, konsol, atau ponsel.[1] Mesin permainan memberikan kemudahan bagi pengembang permainan karena menyediakan fungsi-fungsi inti dari sebuah permainan, misalnya grafika (menghasilkan grafika 2 dimensi atau 3 dimensi), fisika (menghitung dan menyimulasikan hukum-hukum gerak dan hukum...

 

طوماس فريتش

طوماس فريتش (بالألمانية: Thomas Fritsch)‏  معلومات شخصية الميلاد 16 يناير 1944 [1][2]  درسدن  الوفاة 21 أبريل 2021 (77 سنة) [3]  برلين  الإقامة ميونخ  مواطنة ألمانيا  الأب ويلي فريتش  الحياة العملية المهنة مؤدي أصوات،  ومغني،  وممثل أفلام،  وممثل تلفزي�...

 

James Lovelock

« Lovelock » redirige ici. Pour les autres significations, voir Lovelock (homonymie). James LovelockJames Lovelock en 2005.BiographieNaissance 26 juillet 1919Letchworth Garden City (Angleterre, Royaume-Uni)Décès 26 juillet 2022 (à 103 ans)AbbotsburyNom de naissance James Ephraim LovelockNationalité  BritanniqueFormation Université de ManchesterStrand School (en)London School of Hygiene & Tropical MedicineActivités Independent scientist (à partir de 1964), éc...

Mathew Knowles & Music World Present Vol.1: Love Destiny

Mathew Knowles & Music World PresentVol.1: Love DestinyAlbum studio karya Destiny's ChildDirilis25 Juni 2008GenreR&B, hip hop, dance musicLabelColumbia RecordsProduserMathew KnowlesKronologi Destiny's Child # 1's(2005)# 1's2005 Mathew Knowles & Music World Present Vol.1: Love Destiny(2008) Mathew Knowles & Music World Present Vol.1: Love Destiny adalah album musik kompilasi yang dipersembahkan oleh Mathew Knowles kepada grup musik R&B asal Amerika Serikat, selaku manaj...

 

Chromosome 7

Human chromosome Chromosome 7Human chromosome 7 pair after G-banding.One is from mother, one is from father.Chromosome 7 pairin human male karyogram.FeaturesLength (bp)160,567,428 bp(CHM13)No. of genes862 (CCDS)[1]TypeAutosomeCentromere positionSubmetacentric[2](60.1 Mbp[3])Complete gene listsCCDSGene listHGNCGene listUniProtGene listNCBIGene listExternal map viewersEnsemblChromosome 7EntrezChromosome 7NCBIChromosome 7UCSCChromosome 7Full DNA sequencesRefSeqNC_000007 (...

 

Человек прямоходящий

† Человек прямоходящий Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеНадкласс:ЧетвероногиеКлада:АмниотыКлада:Синапсиды�...

Sejarah Kabupaten Maros

Masa Prasejarah Sejarah tentang Maros senantiasa terkait dengan keberadaan manusia prasejarah yang ditemukan di Gua Pettae, Kelurahan Leang-Leang, Kecamatan Bantimurung (sekitar 11 km dari Kota Turikale atau 44 km dari Kota Makassar). Dari hasil penelitian, arkeolog menyebutkan bahwa gua bersejarah tersebut telah dihuni oleh manusia sejak zaman megalitikum sekitar 3.000 tahun sebelum Masehi (nyaris satu zaman dengan Nabi Nuh yang wafat 3043 tahun sebelum Masehi) yang selanjutnya tu...

 

Gran Colombia

Republic in South and Central America from 1819 to 1831 Republic of ColombiaRepública de Colombia (Spanish)1819–1831 Flag (1821–1831) Emblem(1821–1831) Motto: Unión (Spanish)Anthem: Marcha Libertadora (Spanish)Gran ColombiaCapitalBogotáCommon languagesSpanish and Indigenous languagesReligion Roman CatholicismGovernmentFederal presidential republicPresidents • 1819–1830 Simón BolívarEstanislao Vergara y Sanz de Santamaría• 1830, 1831 Domingo...

 

1848 United States presidential election in South Carolina

Election in South Carolina Main article: 1848 United States presidential election 1848 United States presidential election in South Carolina ← 1844 November 7, 1848 1852 →   Nominee Lewis Cass Party Democratic Home state Michigan Running mate William O. Butler Electoral vote 9 President before election James K. Polk Democratic Elected President Zachary Taylor Whig Elections in South Carolina Federal government U.S. President 1788-89 1792 1796 1800 180...

Campeonato de Portugal 1935

Campeonato de Portugal 1935Campeonato de Portugal 1935 Competizione Taça de Portugal Sport Calcio Edizione 14ª Luogo  Portogallo Sede finale Stadio do Lumiar Risultati Vincitore  Benfica(3º titolo) Secondo  Sporting Lisbona Semi-finalisti  Porto Carcavelinhos FC Statistiche Incontri disputati 28 Gol segnati 133 (4,75 per incontro) Cronologia della competizione 1934 1936 Manuale Il Campeonato de Portugal 1935 fu la quattordicesima edizione del Campeonato de Po...

 

Copa Libertadores da América de Futebol Feminino de 2013

Esta página cita fontes, mas que não cobrem todo o conteúdo. Ajude a inserir referências. Conteúdo não verificável pode ser removido.—Encontre fontes: ABW  • CAPES  • Google (N • L • A) (Dezembro de 2020) Copa Libertadores da Américade Futebol Feminino de 2013 V Copa Libertadores Femenina Dados Participantes 12 Organização CONMEBOL Anfitrião  Brasil (Foz do Iguaçu) Período 27 de outubro – 7 de novembro Gol(o)s...

 

銮披汶·颂堪

銮披汶·頌堪แปลก พิบูลสงคราม第3任泰國總理任期1938年12月16日—1944年8月1日君主國王拉玛八世前任披耶帕凤侯爵继任寬·阿派旺第8任泰國總理任期1948年4月8日—1957年9月16日君主國王拉玛九世前任寬·阿派旺继任乃朴·沙拉信 个人资料出生貝·基達桑卡(1897-07-14)1897年7月14日 暹罗暖武里府逝世1964年6月11日(1964歲—06—11)（66歲） 日本神奈川縣相模原市国籍&#...

Inlet manifold

Automotive technology This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Inlet manifold – news · newspapers · books · scholar · JSTOR (February 2019) (Learn how and when to remove this message)Carburetors used as intake runners A cutaway view of the intake of the original Fordson tractor (including the intake m...

 

中華民國國軍中的中共間諜列表

 本表是動態列表，或許永遠不會完結。歡迎您參考可靠來源來查漏補缺。 潛伏於中華民國國軍中的中共間諜列表收錄根據公開資料來源，曾潛伏於中華民國國軍、被中國共產黨聲稱或承認，或者遭中華民國政府調查審判，為中華人民共和國和中國人民解放軍進行間諜行為的人物。以下列表以現今可查知時間為準，正確的間諜活動或洩漏機密時間可能早於或晚於以下所歸�...

 

Fin Bartels

German footballer (born 1987) Fin Bartels Bartels training with Werder Bremen in 2017Personal informationDate of birth (1987-02-07) 7 February 1987 (age 37)Place of birth Kiel, West GermanyHeight 1.75 m (5 ft 9 in)Position(s) Midfielder, strikerYouth career TSV Russee0000–2002 SpVgg Eidertal Molfsee2002–2005 Holstein KielSenior career*Years Team Apps (Gls)2005 Holstein Kiel II 10 (1)2005–2007 Holstein Kiel 50 (5)2007 Hansa Rostock II 8 (4)2007–2010 Hansa Rostock 77...

HMS Dreadnought (1906)

British battleship that revolutionised ship design For other ships with the same name, see HMS Dreadnought. Dreadnought at sea in 1906 Class overview NameDreadnought Preceded byLord Nelson class Succeeded byBellerophon class Cost£1,785,683 Built1905–1906 In service1906–1919 In commission1906–1919 Completed1 Scrapped1 History United Kingdom NameDreadnought Ordered1905 BuilderHM Dockyard, Portsmouth Laid down2 October 1905 Launched10 February 1906 Commissioned2 December 1906 Decommi...

 

Shia–Sunni relations

Relations between the two largest Islamic sects Part of a series onIslam Beliefs Oneness of God Angels Revealed Books Prophets Day of Resurrection Predestination Practices Profession of Faith Prayer Almsgiving Fasting Pilgrimage TextsFoundations Quran Sunnah (Hadith, Sirah) Tafsir (exegesis) Aqidah (creed) Qisas al-Anbiya (Stories of the Prophets) Mathnawi (Poems) Fiqh (jurisprudence) Sharia (law) History Timeline Muhammad Ahl al-Bayt Sahabah Rashidun Caliphate Imamate Medieval Islamic scienc...

 

سعد الخبايا

هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (أبريل 2020) سعد الخبايا: يقال عنه: (( سعد الخبايا نفاض الضبايا ما تبقى حاجة مخبايا )) أي في هذه الفترة يستنفد الفلاحون عولة العام الماضي كما أن الكائنات الحية التي كانت في ا...

Sussex Rugby Football Union

Rugby teamSussex RFUFull nameSussex Rugby Football UnionUnionRFUFounded1868; 156 years ago (1868)RegionEast Sussex, West Sussex Team kit Official websitesussexrugby.co.uk The Sussex Rugby Football Union is the society responsible for rugby union in the county of Sussex, England and is one of the constituent bodies of the national Rugby Football Union.[1][2] History The first rugby club in Sussex was Brighton, formed in 1868. Following the formation of severa...

 

Jelangkung (film)

Untuk kegunaan lain, lihat Jailangkung (disambiguasi). JelangkungSutradaraRizal MantovaniJose PoernomoProduserJose PoernomoDitulis olehRizal MantovaniJose PoernomoAdi NugrohoSkenarioRizal MantovaniJose PoernomoAdi NugrohoCeritaRizal MantovaniPemeranWinky WiryawanMelanie AriyantoRony DozerHarry PantjaIan's BahtiarChandraAzmi SuhaimiArief RGMartoetiSri HartiniPlontoArief RudihartoPenata musikDavid PoernomoSinematograferJose PoernomoPenyuntingJose PoernomoRizal MantovaniDistributorRexinema...