Chalcopyrite has a tetragonal crystal structure (space group I42d ) and the composition CuFeS2; answer to Guess the Mineral

Chalcopyrite

Fool's Gold as a Solar Material
Surprisingly low solar conversion efficiency of iron pyrite explained

The Greening of the Cosmetics Industry
Sustainability has come to the fore in the cosmetics and personal care industry

Most Accessed Articles: October 2014
The most-accessed chemistry articles from ChemPubSoc Europe, ACES, and GDCh journals for October 2014

Recycling Indium from Consumer Products
Extracting indium from photovoltaic cells with nanofiltration membranes

Comic Competition: The Winners
The winning entries in the 2014 Comic Competition have been announced

Influence of University Rankings
Impact and influence of rankings on European higher education institutions

50th Anniversary: Hans von Euler-Chelpin's Death
Hans von Euler-Chelpin received the Nobel prize for his work on the role of enzymes in the fermentation of sugar

The Chemistry of Tobacco – Part 2
What does tobacco contain and which chemical changes happen between the harvest and a finished cigarette?

Chemical Poems: Tungsten
Poems based on the natural properties of each of the elements of the periodic table