Zektzerite

Zektzerite

General
Category	Inosilicate
Formula (repeating unit)	LiNa(Zr,Ti,Hf)Si₆O₁₅
IMA symbol	Zek^[1]
Strunz classification	9.DN.05
Crystal system	Orthorhombic
Crystal class	Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Space group	Cmca
Identification
Formula mass	529.66 g/mol
Color	Colorless to pink, cream, or white; commonly zoned
Crystal habit	Stout pseudohexagonal prisms
Cleavage	{100} and {010} perfect
Mohs scale hardness	6
Luster	Vitreous to pearly
Streak	White
Diaphaneity	Translucent to transparent
Specific gravity	2.79
Optical properties	Biaxial (-)
Refractive index	n_α = 1.582 n_β = 1.584 n_γ = 1.584
Ultraviolet fluorescence	Light yellow
References	^[2]^[3]^[4]

The mineral zektzerite is a member of the tuhualite group and was first found in 1966 by Seattle mineralogist Benjamin Bartlett "Bart" Cannon. It was discovered in the Willow creek basin below Silver Star mountain in miarolitic cavities within the alkaline arfvedsonite granite phase of the Golden Horn batholith, Okanogan County, Washington.^[3] It is named for Jack Zektzer (born 1936), mathematician and mineral collector of Seattle, Washington.^[2]

The mineral was misidentified as alkali beryl (morganite) at that time. Subsequently, in September, 1975, additional specimens of the mineral were found in a "float boulder" (a glacial erratic, or dropstone) on the north side of Kangaroo Ridge at an approximate elevation of 6,500 feet (2,000 m); it was recognized that the material was not beryl.^[5]

Properties

Synthesis: by fusion of Li₂CO₃, Na₂CO₃, SiO₂, ZrO₂. The resulting material has a brilliant blue-white fluorescence under short-wave ultraviolet light.^{[citation needed]}

Occurrence

Zektzerite is a mineral of agpaitic granites with arfvedsonite. It occurs with smoky quartz, microcline, okanoganite, sogdianite, astrophyllite, and zircon. It is found in cavities as euhedral crystals in the agpaitic-granite phase of the Golden Horn batholith, Okanogan County, Washington. It also occurs in blocks of pegmatite as rock-forming grains in a moraine of the Dara Pioz glacier in northern Tajikistan; in the Del Salto pluton in Aysén Province, Chile; as euhedral crystals at Virikkollen, Haneholmveien, Sandefjord, Norway; Ampasibitika, Ampasindava Peninsula, Madagascar; and as gemmy crystals up to 3 cm from Mt. Malosa Malawi.^[4]

References

^ 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.
^ ^a ^b http://webmineral.com/data/Zektzerite.shtml Webmineral
^ ^a ^b http://rruff.geo.arizona.edu/doclib/hom/zektzerite.pdf Mineral Handbook
^ ^a ^b http://www.mindat.org/min-4390.html Mindat
^ Dunn et al.: Zektzerite: a new lithium sodium zirconium silicate related to tuhualite and the osumilite group, American Mineralogist, v. 62, p. 416-20 (1977)

Die Seltene Mineralien von Dara-i-Pioz in Hochgebirge Tadshikistans Lapis v. 16(12) p. 42–48 (1991)
Peralkaline rocks in the late Cretaceous Del Salto pluton Eastern Patagonian Andes Aisen Chile Revista Geologica de Chile v. 29 #1 July 1992 p. 3–15
Glasser, F. P., Marr J. Synthesis of anhydrous silicates containing double chain anions Si6O15 (6-): Proceedings British Ceramic Society No. 28 p. 73–89 June 1979

Guastoni, Alessandro; Pezzotta, Frederico and Zorzi, Frederico: Neufunde aus Alkali Pegmatiten am Mount Malosa Malawi Lapis 3 (2008) p. 38–41

Read other articles:

Lakagígar

LakiTitik tertinggiKetinggianBervariasi: ngarai mencapai 1.725 mKoordinat64°03′53″N 18°13′34″W / 64.06472°N 18.22611°W / 64.06472; -18.22611Koordinat: 64°03′53″N 18°13′34″W / 64.06472°N 18.22611°W / 64.06472; -18.22611 GeografiLetakIslandiaGeologiJenis gunungRekahanLetusan terakhir1784 Laki atau Lakagígar (Kawah Laki) adalah sebuah rekahan vulkanik yang terletak di Islandia selatan, tidak jauh dari ngarai Eldgjá d...

Marselino Ferdinan

Marselino Ferdinan Ferdinan bermain untuk Indonesia U-23 at the Pesta Olahraga Asia Tenggara 2023Informasi pribadiNama lengkap Marselino Ferdinan PhilipusTanggal lahir 9 September 2004 (umur 19)[1]Tempat lahir Jakarta, IndonesiaTinggi 178 m (584 ft 0 in)[2]Posisi bermain Gelandang serang, sayapInformasi klubKlub saat ini DeinzeNomor 27Karier junior2020 Persebaya SurabayaKarier senior*Tahun Tim Tampil (Gol)2021–2023 Persebaya Surabaya 34 (7)2023– Deinze...

Sulafa Tower

Artikel ini membahas mengenai bangunan, struktur, infrastruktur, atau kawasan terencana yang sedang dibangun atau akan segera selesai. Informasi di halaman ini bisa berubah setiap saat (tidak jarang perubahan yang besar) seiring dengan penyelesaiannya. Sulafa TowerSulafa Tower dalam pembangunan bulan Desember 2007Informasi umumLokasiDubai, Uni Emirat ArabPerkiraan rampung2009Data teknisJumlah lantai75Desain dan konstruksiArsitekNational Engineering Bureau Sulafa Tower merupakan sebuah menara ...

حسام الصباح

حسام الصباح معلومات شخصية الميلاد سنة 1948 [1] النبطية[2] الوفاة 29 مايو 2021 (72–73 سنة)[3] صيدا سبب الوفاة حادث مرور مواطنة لبنان الحياة العملية المدرسة الأم الجامعة اللبنانية المهنة ممثل تلفزيوني، وممثل، ومخرج اللغة الأم العربية ...

Guangzhou International Women's Open 2011

Guangzhou International Women's Open 2011 Sport Tennis Data 17 - 24 settembre Edizione 8ª Superficie Cemento Campioni Singolare Chanelle Scheepers Doppio Hsieh Su-wei / Zheng Saisai 2010 2012 Il Guangzhou International Women's Open 2011 (chiamato anche WANLIMA Guangzhou International Women's Open per ragioni di sponsor) è stato un torneo di tennis giocato sul cemento all'aperto. È stata l'8ª edizione del torneo che fa parte della categoria International nell'ambito del WTA Tour 2011. Il ...

Keio 1000 series (1996)

Japanese electric multiple unit train type Keio 1000 seriesSet 1707 in December 2022In service1996–presentManufacturerTokyu Car Corp, Nippon SharyoReplacedKeio 3000 seriesConstructed1995–2010Entered service9 January 1996Refurbished2016–2020Number built145 vehicles (29 sets)Number in service145 vehicles (29 sets)Formation5 cars per trainsetFleet numbers 1701–1715 1721–1734 OperatorsKeio CorporationDepotsFujimigaokaLines servedIN Inokashira LineSpecificationsCar body constructionStain...

1685

Cette page concerne l'année 1685 du calendrier grégorien. Chronologies 8 novembre : édit de Potsdam.Données clés 1682 1683 1684 1685 1686 1687 1688Décennies :1650 1660 1670 1680 1690 1700 1710Siècles :XVe XVIe XVIIe XVIIIe XIXeMillénaires :-Ier Ier IIe IIIe Chronologies thématiques Art Architecture, Arts plastiques (Dessin, Gravure, Peinture et Sculpture), Genres (), Littérature (), Musique (Classique) et Théâtre...

Makgatho Mandela

Son of Nelson Mandela (1950–2005) Makgatho MandelaBornMakgatho Lewanika Mandela26 June 1950Union of South AfricaDied6 January 2005(2005-01-06) (aged 54)Johannesburg, South AfricaCause of deathAIDSSpousesRose Rayne PerryZondiChildren4, including Mandla Mandela and Ndaba MandelaParent(s)Nelson MandelaEvelyn MaseRelativesThembekile Mandela (brother)Makaziwe Mandela (sister) Zenani Mandela-Dlamini (half-sister) Zindzi Mandela-Hlongwane (half-sister) Makgatho Lewanika Mandela (26 June ...

Military ranks of the Netherlands armed forces

The Military ranks of the Netherlands Armed Forces are the military insignia used by the armed forces of the Netherlands.[1] Current ranks Officer ranks NATO code OF-10 OF-9 OF-8 OF-7 OF-6 OF-5 OF-4 OF-3 OF-2 OF-1 OF(D) Student officer Royal Netherlands Army[2]vte Generaal Luitenant-generaal Generaal-majoor Brigadegeneraal Kolonel Luitenant-kolonel Majoor Kapitein/Ritmeester Eerste luitenant Tweede luitenant Royal Netherlands Navy[2]vte Luitenant-Admi...

Niecy Nash

Niecy Nash nel 2010 Niecy Nash, pseudonimo di Carol Denise Ensley (Palmdale, 23 febbraio 1970), è una comica e attrice statunitense. Indice 1 Biografia 1.1 Primi lavori 1.2 2012-presente 2 Vita privata 3 Filmografia 3.1 Attrice 3.1.1 Cinema 3.1.2 Televisione 3.2 Doppiatrice 4 Riconoscimenti 5 Doppiatrici italiane 6 Note 7 Altri progetti 8 Collegamenti esterni Biografia Questa voce o sezione sull'argomento attori statunitensi non cita le fonti necessarie o quelle presenti sono insufficie...

世界政區索引

此條目可能包含不适用或被曲解的引用资料，部分内容的准确性无法被证實。 (2023年1月5日)请协助校核其中的错误以改善这篇条目。详情请参见条目的讨论页。各国相关主題列表索引国内生产总值石油储量国防预算武装部队（军事）官方语言人口統計人口密度生育率出生率死亡率自杀率谋杀率失业率储蓄率识字率出口额进口额煤产量发电量监禁率死刑国债 ...

Klimat śródziemnomorski

Występowanie klimatu śródziemnomorskiego na świecie Klimat śródziemnomorski – rodzaj klimatu podzwrotnikowego (subtropikalnego), występujący nad Morzem Śródziemnym (stąd jego nazwa), a także w Kalifornii, Południowej Afryce, na południu Australii oraz u wybrzeży Chile w Ameryce Południowej. Jego charakterystyczną cechą są ciepłe i suche lata o temperaturze powyżej 20 °C oraz łagodne zimy o temperaturze powyżej 0 °C, a także fakt, że występuje głównie ...

Национальное аэрокосмическое агентство Азербайджана

Национальное аэрокосмическое агентство Азербайджана Штаб-квартира Баку, ул. С. Ахундова, AZ 1115 Локация Азербайджан Тип организации Космическое агентство Руководители Директор: Натиг Джавадов Первый заместитель генерального директора Тофик Сулейманов Основание Осн�...

Order of Saints Maurice and Lazarus

Roman Catholic dynastic order of knighthood 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: Order of Saints Maurice and Lazarus – news · newspapers · books · scholar · JSTOR (February 2024) (Learn how and when to remove this message) This article is about the dynastic chivalric order established in 1572. For...

Tan Aspan

Tan Aspan Informasi pribadiLahir27 Juli 1954 (umur 69)Kota Sambas, Kalimantan BaratSuami/istriWati AndriniAnak2Alma materAKABRI (1976)Karier militerDinas/cabang TNI Angkatan DaratMasa dinas1976–2010Pangkat Mayor Jenderal TNISatuanInfanteriSunting kotak info • L • B Mayor Jenderal TNI (Purn.) Tan Aspan, (lahir 27 Juli 1954 adalah seorang purnawirawan perwira tinggi TNI Angkatan Darat lulusan AKABRI tahun 1976. Sejak 7 April 2010 sampai dengan 2012 lalu menggantikan se...

Marcello Mastroianni

Marcello Mastroianni alla Mostra del Cinema di Venezia del 1990 Marcello Mastroianni, all'anagrafe Marcello Vincenzo Domenico Mastroianni (Fontana Liri, 26 settembre 1924[1] – Parigi, 19 dicembre 1996), è stato un attore italiano. È stato fra i maggiori interpreti italiani, nonché uno dei più conosciuti e apprezzati all'estero[2] dagli anni sessanta in poi, soprattutto per i ruoli da protagonista nei film di Federico Fellini e per le pellicole recitate in coppia con Soph...

Мораль и догма Древнего и принятого шотландского устава масонства

Мораль и догма Древнего и принятого шотландского устава масонстваMorals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry Жанр история масонства Автор Альберт Пайк Язык оригинала Английский Дата первой публикации 1872 год Масонство Направления Регулярное масонство Либеральное масонст...

Record sales

Economic activity related to selling records through record shops or online music stores Album sales redirects here. For the Billboard chart, see Top Album Sales. A Virgin Megastore in Brisbane, Australia in 2007 Record sales or music sales are activities related to selling music recordings (albums, singles, or music videos) through physical record shops or digital music stores.[1][2][3] Record sales reached their peak in 1999, when 600 million people spent an average ...

Andy Williams' Greatest Hits

1970 compilation album by Andy WilliamsAndy Williams' Greatest HitsCover art by Bernie FuchsCompilation album by Andy WilliamsReleased1970Recorded1958[1] 1962−1969[2][3]GenreEarly pop/rocktraditional popvocal popstandardssoft rockfilm musicsoundtracks[4]Length30:04LabelColumbia KCS 9979Andy Williams chronology Get Together with Andy Williams(1969) Andy Williams' Greatest Hits(1970) Raindrops Keep Fallin' on My Head(1970) Alternate coverUK cover Profes...

مسجد الشاه (أصفهان)

لمعانٍ أخرى، طالع مسجد الشاه (توضيح). مسجد الشاه مسجد الشاه (أصفهان) معلومات أساسيّة الموقع ساحة نقش جهان، أصفهان، إيران الانتماء الديني الإسلام - المذهب الشيعي الطبيعة مسجد جامع العمارة المصمم أستاذ علي أكبر أصفهاني أستاذ شجاع أصفهاني الطراز المعماري عمارة إيرانية�...