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.

Robson Borges is a 32 year old illustrator from Brazil. In his illustrations you will see everything from nature, animals, skylines of buildings and much more. The great thing about Borges’ illustration style is the way that he uses the background and objects together to frame his art. You can see a ton of his great prints for sale on society6, as well as in places like Threadless and DesignByHumans. So check out these great art prints and check out more of his apparel designs and art prints through the links below.

A keen pet owner has created a series of quirky poster-style artworks – with his photogenic pet pooch as the star. Rafael Mantesso, 31, a co-founder of a gastronomy institute, from Carangola, Minas Gerais, Brazil spends his time shooting pictures of five-year-old bull terrier dog Jimmy Choo in different everyday poses – complete with Rafaels hand drawn illustrations. (Photo by Rafael Mantesso/Caters News)

A young sloth named Gloria, that was rescued after being stolen from the wild destined for trafficking, peeks out of the box it is being taken to be released at the city's Botanical Garden in Rio de Janeiro, Brazil, Monday, March 13, 2023. Gloria was cared for by the Free Life Institute NGO that rehabilitates injured wildlife found in the surrounding Rio area and returns them, when possible, back to the wild. Those that are too injured to be released are sent to other rehab centers or sanctuaries to live out their lives in protected environments. (Photo by Bruna Prado/AP Photo)

Graffiti saying “justice” partially seen above flood waters in Asuncion, December 27, 2015. More than 100,000 people have had to evacuate from their homes in the bordering areas of Paraguay, Uruguay, Brazil and Argentina due to severe flooding in the wake of heavy summer rains brought on by El Nino, authorities said on Saturday. (Photo by Jorge Adorno/Reuters)

Residents (R to L) Luiza, Janubie, Leiticia and Lucas sit beneath an overpass near their houses in an impoverished area in the unpacified Complexo da Mare slum complex, one of the largest “favela” complexes in Rio, on March 18, 2014 in Rio de Janeiro, Brazil. (Photo by Mario Tama/Getty Images)

Brazil's tallest teen is set marry her beau – despite him being over a foot smaller than her. Elisany da Cruz Silva (18) is a staggering 6ft 8ins (206 cm) tall while her compact fiancee Francinaldo da Silva Carvalho is only 5ft 4ins (162 cm). Despite a massive 1ft 4ins between them, Francinaldo had no problem increasing the distance by dropping to one knee after a romantic stroll along the beach. (Photo by Barcroft Media)

A young bull flees from a Brazilian vaqueiro, or cowboy, competing in the “Pega de Boi” (Ox Catch) tournament in Cabrobo, Pernambuco State, Brazil, on September 4, 2022. The riders compete in pairs to retrieve a cord from a bull which has been released and runs away from them and they are timed on how quickly they can return with the cord. The leather clothing provides them with protection from the dense savannah vegetation which contains a lot of large thorns. Riders have been known to die competing in the tournament (Photo by Carl de Souza/AFP Photo)