Kyawthuite

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Kyawthuite
General
Category Oxide mineral
Formula
(repeating unit)		BiSbO4
IMA symbol Kyw [1]
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group I2/c
Unit cell a = 5.46  Å , b = 4.89 Å
c = 11.85 Å, β = 101.20° (approximated); Z = 4
Identification
References [2] [3]

Kyawthuite[ needs IPA ] is a rare mineral [2] with formula BiSbO4. [3] It is a natural bismuth antimonate, in which bismuth has oxidation state 3, and antimony oxidation state 5.

Contents

Description

Kyawthuite is monoclinic, with space group I2/c, and is isostructural with clinocervantite, [2] its trivalent-antimony-analogue. [4] Kyawthuite is an antimony-analogue of clinobisvanite. [5]

Occurrence

Kyawthuite was discovered in the vicinity of Mogok in Myanmar, an area famous for its variety of gemstone minerals. [6]

Only one 0.3 gram sample of the naturally occurring form of this mineral is documented, and it is stored at the Natural History Museum of Los Angeles County. [7] [8]

Related Research Articles

<span class="mw-page-title-main">Painite</span> Borate mineral

Painite is a very rare borate mineral. It was first found in Myanmar by British mineralogist and gem dealer Arthur C.D. Pain who misidentified it as ruby, until it was discovered as a new gemstone in the 1950s. When it was confirmed as a new mineral species, the mineral was named after him.

Szklaryite is an extremely rare mineral with the formula []Al6BAs33+O15. It is essentially vacant ("[]"), arsenic-dominant member of dumortierite supergroup, giving a name of szklaryite group. It is one of three quite recently found minerals of this group, the other two being nioboholtite and titanoholtite, all coming from the Szklary village near Ząbkowice Śląskie in Poland. They occur in a unique pegmatite of probable anatectic origin.

Nioboholtite is an extremely rare mineral with the formula (Nb0.6[]0.4)Al6BSi3O18. It is the niobium-rich member of the dumortierite supergroup, and the niobium analogue of holtite of the holtite group. It is one of three quite recently found minerals of this group, the other two being titanoholtite and szklaryite, all coming from the Szklary village near Ząbkowice Śląskie in Poland. They occur in a unique pegmatite. Nioboholtite and schiavinatoite are both minerals with essential niobium and boron.

Florencite-(Sm) is a very rare mineral of the plumbogummite group (alunite supergroup) with simplified formula SmAl3(PO4)2(OH)6. Samarium in florencite-(Sm) is substituted by other rare earth elements, mostly neodymium. It does not form separate crystals, but is found as zones in florencite-(Ce), which is cerium-dominant member of the plumbogummite group. Florencite-(Sm) is also a samarium-analogue of florencite-(La) (lanthanum-dominant) and waylandite (bismuth-dominant), both being aluminium-rich minerals.

Feodosiyite is a very rare chloride mineral, just recently approved, with the formula Cu11Mg2Cl18(OH)8•16H2O. Its structure is unique. Feodosiyite comes from the Tolbachik volcano, famous for many rare fumarolic minerals. Chemically similar minerals, chlorides containing both copper and magnesium, include haydeeite, paratacamite-(Mg) and tondiite.

Heptasartorite is a very rare mineral with formula Tl7Pb22As55S108. It belongs to sartorite homologous series. It is related to other recently approved minerals of the series: enneasartorite and hendekasartorite. All three minerals come from a quarry in Lengenbach, Switzerland, which is famous of thallium minerals. Chemically similar minerals include edenharterite and hutchinsonite.

<span class="mw-page-title-main">Hendekasartorite</span>

Hendekasartorite is a very rare thallium sulfosalt mineral with formula Tl2Pb48As82S172. It is one of recently approved new members of sartorite homologous series, by enneasartorite and heptasartorite. All new members come from Lengenbach quarry in Switzerland, prolific in terms of thallium sulfosalt minerals. Hendekasartorite is chemically similar to edenharterite and hutchinsonite.

<span class="mw-page-title-main">Fluorwavellite</span>

Fluorwavellite is a rare phosphate mineral with formula Al3(PO4)2(OH)2F•5H2O. As suggested by its name, it is a fluorine-analogue of wavellite (hence its name), a rather common phosphate mineral. Chemically similar aluminium fluoride phosphate minerals include fluellite, kingite and mitryaevaite.

<span class="mw-page-title-main">Steinmetzite</span>

Steinmetzite is a very rare phosphate mineral with formula Zn2Fe(PO4)2(OH)•3H2O. It was discovered among pegmatites of Hagendorf in Germany, that are famous for rare phosphate minerals. Steinmetzite is chemically related to phosphophyllite and other zinc iron phosphates, namely plimerite and zinclipscombite.

<span class="mw-page-title-main">Cerianite-(Ce)</span> Oxide mineral

Cerianite-(Ce) is a relatively rare oxide mineral, belonging to uraninite group with the formula (Ce,Th)O
2. It is one of a few currently known minerals containing essential tetravalent cerium, the other examples being stetindite and dyrnaesite-(La).

Dyrnaesite-(La) is a rare-earth phosphate mineral with the formula Na
8Ce4+
(La,REE)
2(PO
4)
6. Dyrnaesite-(La) is related to vitusite-(Ce), another rare-earth phosphate mineral. It comes from lujavrite, a type of alkaline syenite rock, of South Greenland. Dyrnaesite-(La) is one of few known minerals with essential tetravalent cerium, the other two being cerianite-(Ce) and stetindite.

Genplesite is a very rare tin mineral coming from the Oktyabr'skoe deposit in the Noril'sk area, Russia, which is known for nickel and platinum group elements minerals. Its chemical formula is Ca3Sn(SO4)2(OH)6•3H2O. Genplesite is a member of the fleischerite group, and it is a calcium and tin-analogue of fleischerite. It is hexagonal, with space group P63/mmc.

Chrysothallite is a rare thallium-bearing chloride mineral with the formula K6Cu6Tl3+Cl17(OH)4•H2O. Chrysothallite is unique in being only the second mineral with essential trivalent thallium, a feature shared with natural thallium(III) oxide, avicennite. Another examples of natural thallium chlorides are steropesite, Tl3BiCl6, and lafossaite, TlCl. Chrysothallite is one of numerous fumarolic minerals discovered among fumarolic sites of the Tolbachik volcano, Kamchatka, Russia The mineral is named in allusion to its colour and thallium content.

Ilirneyite is a rare tellurite mineral with the formula Mg0.5[ZnMn3+(TeO3)3]•4.5H2O. It was discovered at the Sentyabr'skoe deposit (of silver and gold) in the Ilirney Range, Western Chukotka, Russia.

Itelmenite is a rare sulfate mineral with the formula MnCr2S4. It was discovered in Social Circle meteorite found in Georgia, US.

Hermannjahnite is a rare sulfate mineral with the relatively simple formula CuZn(SO4)2. It is one of many fumarolic minerals discovered on the Tolbachik volcano.

Manganiceladonite is a rare silicate mineral with the formula KMgMn3+Si4O10(OH)2. It is one of many minerals discovered in the Cerchiara mine, La Spezia, Liguria, Italy.

<span class="mw-page-title-main">Shumwayite</span>

Shumwayite is a rare but relatively simple uranyl sulfate mineral with the formula (UO2)2(SO4)2•5H2O. It was discovered in the Green Lizard and Giveaway-Simplot mines of the White Canyon mining district, San Juan County, Utah, US.

Charleshatchettite is a very rare, complex, niobium oxide mineral with the formula CaNb4O10(OH)2•8H2O. It was discovered in the mineral-rich site Mont Saint-Hilaire, Montérégie, Québec, Canada.

Wampenite is a rare organic mineral with the formula C18H16, found in Wampen, Fichtelgebirge, Bavaria, Germany.

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. 1 2 3 "Kyawthuite: Kyawthuite mineral information and data". Mindat.org. Retrieved 2016-03-04.
  3. 1 2 Kampf, A.R., Rossman, G.R. and Ma, C. (2015) Kyawthuite, IMA 2015-078. CNMNC Newsletter No. 28, December 2015, 1863; Mineralogical Magazine 79, 1859–1864
  4. ↑ "Clinocervantite: Clinocervantite mineral information and data". Mindat.org. Retrieved 2016-03-09.
  5. ↑ "Clinobisvanite: Clinobisvanite mineral information and data". Mindat.org. Retrieved 2016-03-09.
  6. ↑ "Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Myanmar - Mindat.org". Mindat.org. Retrieved 2016-03-04.
  7. ↑ Luntz, Stephen (26 January 2023). "There Is Only One Specimen Of The Rarest Mineral On Earth". IFLScience. Retrieved 30 January 2023.
  8. ↑ Starr, Michelle, The World's Rarest Mineral Is So Rare It's Only Ever Been Found Once , Science Alert, November 29, 2024
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