The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.

These stunning images show the phwoar-some power of some of Americas most extreme weather. Camille Seaman’s wondrous work features huge super cells, crashing lightning and gale-force winds. The roaming photographer has chased storms across the US from Iowa to Wyoming and from Minnesota to Texas. Her favorite places to chase are Kansas, Nebraska and South Dakota – notorious hotspots for spectacular storms. Here: Supercell in Minnesota, near Browerville, Minnesota in 2014. (Photo by Camille Seaman/Caters News)

In a north London hospital, scientists are growing noses, ears and blood vessels in the laboratory in a bold attempt to make body parts using stem cells. It is among several labs around the world, including in the U.S., that are working on the futuristic idea of growing custom-made organs in the lab. (Photo by Matt Dunham/AP Photo)

Inmates are seen at the transgender gallery in La Joya prison on the outskirts of Panama City, Panama February 3, 2016. Inmates of La Joya prison on the outskirts of Panama City are housed in makeshift cells amid heavy overcrowding, living in grimy conditions and with limited medical attention. Many prisoners in the Central American nation languish for years without being sentenced. (Photo by Carlos Jasso/Reuters)

Eight-year-old handicapped Chinese girl Qian Hongyan crawls with two home-made props and part of a basketball at Zhuangxia Village on January 5, 2005 in Luliang County of Qujing City, Yunnan Province, China. The girl who lost both of her legs in a traffic accident in 2000 at the age of three, struggles to live her life with a basketball as an underprop, “walking” between school and home by herself. The girl's story is widely reported in the country, and experts from China Rehabilitation Research Center has come to Qian's home to help her for rehabilitative treatment early 2005. (Photo by China Photos/Getty Images)

Most probably, every person who has read the Harry Potter books imagined themselves as a wizard. Wouldn’t it be cool to perform all sorts of magic or to whizz around on a broom? Well, actually, if you think about it, whizzing around on a broom might not be such a good idea after all… Just think of all the bugs you’re going to come across! Such an encounter might prove fatal for the bugs. However, you will most likely lose all your desire to ride the Nimbus 2000, once a few dozen bugs will smash into your face! (Photo by Halno)

“You wouldn’t normally associate power stations with beautiful scenic shots but one photographer has traveled nearly 2000 to track down the ugliest energy plants and show them in a whole new light. Czech snapper, Radek Kalhous, uses Google Earth to find the perfect locations for his unique pictures and arrives at each site after sunset to create the atmospheric shots”. – Caters News. Photo: Nuclear power station Temelin, Czech Republic. (Photo by Radek Kalhous/Caters News)

In this handout image provided by Ogilvy, a burger made from cultured beef, which has been developed by Professor Mark Post of Maastricht University in the Netherlands (pictured) is shown to the media during a press conference on August 5, 2013 in London, England. The in-vitro burger, cultured from cattle stem cells, the first example of what its creator says could provide an answer to global food shortages and help combat climate change, was fried in a pan and tasted by two volunteers. The burger is the result of years of research by Dutch scientist Mark Post, a vascular biologist at the University of Maastricht, who is working to show how meat grown in petri dishes might one day be a true alternative to meat from livestock.The meat in the burger has been made by knitting together around 20,000 strands of protein that has been cultured from cattle stem cells in Post's lab. (Photo by David Parry)