Guess the name of a mineral with the help of an image and some tips

Guess the Mineral (4)

Who's Next? Nobel Prize in Chemistry 2014 – Voting Results Monday 06 October
Latest results of the predictions for the next Nobel Prize in Chemistry

Times Higher Education World University Rankings
The Times Higher Education University Ranking 2014–2015 places Caltech in the top spot, followed by Harvard and Oxford

Who's Next? Nobel Prize in Chemistry 2014 – Voting Results Friday 03 October
Latest results of the predictions for the next Nobel Prize in Chemistry

Who's Next? Nobel Prize in Chemistry 2014 – Voting Results Friday 26 September
Latest results of the predictions for the 2014 Nobel Prize in Chemistry

Celestine
Celestine has the chemical composition SrSO4 and crystals are often bluish in color; answer to Guess the Mineral

Who's Next? Nobel Prize in Chemistry 2014 – Voting Results Friday 19 September
Latest results for the predictions for the 2014 Nobel Prize in Chemistry

Sorting Water Molecules
Separation of para and ortho water

Who's Next? Nobel Prize in Chemistry 2014 – Voting Results Friday 12 September
Latest results for the predictions for the 2014 Nobel Prize in Chemistry

European Chemists Met in Istanbul
5th EuCheMS Chemistry Congress (ECC) held in Istanbul last week