Dear Eric,

Thanks for your kind interest. I feel it is complicated, but I will try and let you know if there is any problem.

Thanks again.

Ahmed

Thanks a lot for Golnaz and Dr. Sobhi for their kind reply. Golnaz, the requested spread sheet is for quantitative EPMA analysis (wt%), to calculate the formula and the octahedral and tetrahedral Al. Dr. Sobhi, I already have my own spread sheet for cations calculations, what I asked for is there any spread sheet from which to calculate the octahedral and tetrahedral Al contents from EPMA analysis for thermometric calculations. Anyway, thanks a lot for everybody replied on my question.

Ahmed

Hi Ahmed Hassan,

Attached is a spreadsheet for calculation norm of chlorite. You can also calculate the octahedral and tetrahedral Al contents from excel. Also, include Cathelineau (1988) and Jowett (1991) temperature calculations in chlorites (I've added in excelsheet). in addition attached is a folder for structural formula calculators some minerals (in excel format) download from Open University Electron Microprobe Laboratory web page. and you access the web site at this link: http://www.open.ac.uk/earth-research/tindle/AGT/AGT_Home_2010/Microprobe-2.html

folder for structural formula calculators some minerals (in excel format) download from Open University Electron Microprobe Laboratory web page.

Mehmet,

Thank you very much for your kind message and files you attached.

Ahmed

Hi Ahmed,

You can try the spreadsheet attached. It has various calculations using different restrictions (e.g. number of oxygens).

Cheers,

Matt

Plz note the Minpet software

Can I use 18 Oxygen instead of 36? 

Dear Dr Ahmed

Have u got answer to your Q? I am really interested to know further. Currently I am dealing with many Chol analyses and want to classify them but got problems there.

regards

By Minpet program

Dr. Salah,

Attached herein is an excel sheet from which you can calculate the chemical formula of chlorite based on 28 or 36 oxygen atoms, and can get the chlorite name too. You should have the quantitative analysis of major oxides of chlorite and insert them with the same arrangement in the sheet, then automatically get the chlorite formula. Another method is using the Minpet program and manually insert the major oxides of chlorite to get the classification diagram of chlorite.

Have a nice day.

Yours,

Ahmed

I'll send you one when I get back to Muscat

You can find from:

http://www.open.ac.uk/earth-research/tindle/AGT/AGT_Home_2010/Microprobe-2.html

Thank You very much dear collegues.

I have few EPMA data of chlorite. I tried the excel sheets 'Chlorite' and 'Chlorite formula recalculation'. Both are based on same format I suppose.

I tried the data also with Lanari (2014). However, the resultant temperatures are on a pretty higher side when calculated by Lanari format. Any suggestions please?

@Dr Ersoy, the link provided by you, I hope, is based on Tindle, 2004. However, the link is not opening. Will you please share it again?

Thanx