Jadarite
- IMA 2006-036
Jadarit is a very rarely occurring mineral from the mineral class of " silicates and Germanates ". It crystallizes in the monoclinic crystal system with the chemical composition NaLi [ B3SiO7 (OH)], so it is a sodium lithium boro-silicate hydroxide.
Jadarit has only been found in the form of aggregates, the present as white phenocrysts, xenomorph to subidiomorph developed Jadarit crystals reached a size of about 5 to 10 microns.
Special Features
Jadarit is soluble in cold dilute acids, but insoluble in water. Under short-and long-wave UV light, the mineral is pink to orange fluorescence.
Etymology and history
The recognition as an independent mineral by the International Mineralogical Association (IMA ) in November 2006 under the provisional name " IMA 2006-036 ."
The publication of the results of the research team, consisting of PS Whitfield, Y. Le Page, J. D. Grice, Chris J. Stanley, G. C. Jones, M. S. Rumsey, C. Blake, A. C. Roberts, J.A.R. Stirling and G.J.C. Carpenter, and the official name Jadarit appeared five months later in June 2007 in Acta Crystallographica Section B. Structural Science
Even if Jadarit was eventually named after its type locality, the Jadar Valley in Serbia, the search for a suitable designation designed quaintly: Dr Chris Stanley, with the classification and name search for the newly discovered mineral "sodium lithium boron silicate hydroxide " (translated: sodium lithium boron silicate hydroxide) had been entrusted, was surprised to come across the Internet to an older message to a mineral with almost the same composition under the name kryptonite, but was found to be fictitious after a short time. Opposite the BBC expressed Stanley:
"Towards the end of my research I searched the web using the mineral 's chemical formula - sodium lithium boron silicate hydroxide - and what amazed to discover did same scientific name, written on a case of rock Containing kryptonite stolen by Lex Luthor from a museum in the movie Superman Returns. "
Demarcation between Jadarit and fictitious " Kryptonite "
Unlike the fictional " kryptonite " contains real - existing Jadarit neither fluorine nor traces of a likewise fictional element " Kryptonium " with the purported atomic number 126 ( By comparison, the heaviest known element is the Ununoctium with the real atomic number 118). Jadarit also contains no traces of the actually existing noble gas krypton. According to the rules of the international nomenclature for minerals, it could not therefore be called " Kryptonite ".
Classification
Add directories that were published before its discovery in 2006, such as the recently published 1982 8th edition of the " classification of minerals according to Strunz ," Jadarit is not listed. In 2008 appeared " lapis minerals directory", which is aimed in deference to private collectors and institutional collections yet according to the classical scheme of Karl Hugo Strunz, the mineral received the system no. VIII/H.23-105 within the general ward " layer silicates ( phyllosilicates ) " the adjusted Strunz 's systematics.
In the scheme of minerals by Strunz ( 9th edition ) to the Department of island silicates and the subdivision " with BO3 triangles and / or B -, Be - tetrahedra eckenteilend with SiO4 " where he was the only member of the unnamed group 9.AJ. 40 forms.
The commonly used in English-speaking classification of minerals according to Dana assigns Jadarit also in the department of the island silicates, there, however, in the subdivision of " island silicates: borosilicates and some Beryllosilikate with B in - coordination," where he along with Garrelsit VIII and Okanoganit ( Y) the group forms 54.02.04 Howlit and related minerals.
Education and Locations
Jadarit was discovered in drill cores, research in Jadar Basin. This consists of layers of oil shale, dolomites and pyroclastic deposits of the Neogene (early to middle Miocene ).
Apart from its type locality, there are so far (as of 2010) no other localities.
Crystal structure
Jadarit crystallizes in the monoclinic space group P21 / c with lattice parameters a = 6.7620 Å; b = 13.8016 Å; c = 7.6878 Å and β = 124.089 °, and four formula units per unit cell.