Thursday, October 30, 2008

New mineral from a Turkish scientist


New mineral found by a Turkish scientist:
Meridianiite found in the seas salt where the Hokkaido iceland in Saroma Lake in Antartica..
Formula:MgSO4·11H2O
System:Triclinic
Name: Named to reflect the locality on Mars where the MER rover Opportunity observed crystal molds in sedimentary rock that are thought to be caused by minerals that have since dehydrated or dissolved.
A phase that is stable with a saturated brine or with ice and which melts above 2°C into a slurry of Epsomite and water. It has now been found occurring naturally on Earth (on the surface of a frozen pond) and is suspected of existing on Mars.


Peterson, R.C., W. Nelson, B. Madu, and H.F. Shurvell (2007) Meridianiite: A new mineral species observed on Earth and predicted to exist on Mars. American Mineralogist, Volume 92, pages 1756-1759.Minerals Approved June 2007 - IMA website.Peterson, R.C. & Wang, R. (2006): Crystal Molds on Mars: Melting of a possible new mineral species to create Martian chaotic terrain. Geology, 34, 957-960. Peterson, R.C., Nelson, W., Madu, B., Shurvell, H.F. (2007): Meridianiite (MgSO4·11H2O): a new mineral species observed on Earth and predicted to exist on Mars. Seventh International Conference on Mars, 3124. (http://www.lpi.usra.edu/meetings/7thmars2007/pdf/3124.pdf)Fortes, A.D., Wood, I.G., Knight, K.S. (2008): The crystal structure and thermal expansion tensor of MgSO4–11D2O (meridianiite) determined by neutron powder diffraction. Physics and Chemistry of Minerals, 35, 207-221.

F. Elif Genceli, Martin Lutz, Anthony L. Spek, Geert-Jan Witkamp (2007):Crystallization and Characterization of a New Magnesium Sulfate Hydrate MgSO4 · 11H2O. Crystal Growth & Design 2007, Vol 7, No. 12, 2460-2466


Turk kimyaci yeni bir mineral kesfetti!

ISTANBUL (AA) - Istanbul Teknik Universitesi (ITU) Kimya Muhendisligi Bolumu mezunu olan ve halen Hollanda’da Delft Teknik Universitesi’nde kimya muhendisi olarak gorev yapan Dr. Elif Genceli, doktora calismasi sirasinda, Antartika buzulunda “Meridianiite” adini verdigi yeni bir mineral kesfederek uluslararasi literature girdi.

Dr. Gencel’in adini “Meridianiite” koydugu ve formulu “MgSO4•11H2O” olan mineral, International Mineral Association’dan (IMA) onay alarak literature girdi. Dr. Genceli, “2005’te, MgSO4’un (Magnezyum sulfat) dusuk sicakliktaki molekul yapisi ‘MgSO4•11H2O’nun bilimsel literaturde hatali kayitli oldugunu bulmustum. Molekulun mineral oldugunun ispati icin dunya uzerinde herhangi bir yerde dogal olarak olustugunun kanitlanmasi gerekiyordu.
Yaptigim arastirmada bunun Antarktika buzulunda olabilecegini dusundum. 2007 yili Ocak ayinda Japonya’ya gittim, orada Antarktika buzulunda ve Hokkaido Adasi-Saroma Golu’ndeki deniz tuzunda bu minerali buldum.”
ITU Makine Fakultesi ogretim uyelerinden merhum Prof. Dr. Osman Feyzi Genceli’nin kizi olan ve kucuklugunden beri en buyuk hayalinin akademisyen olmak oldugunu soyleyen Elif Genceli, calismasinda molekulu once laboratuvarinda sentezleyip sonra da Antartika buzulunda buldugunu ifade etti.

Hollanda’da Delft Teknik Universitesi’nde kimya muhendisi olarak gorev yapan Dr. Elif Genceli, doktora calismasi sirasinda, Antartika buzulunda “Meridianiite” adini verdigi yeni bir mineral kesfederek uluslararasi literature girdi.(AA)

No comments: