Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4. Its specific gravity is between 3.5 and 3.7. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions.

Having $100 in your pocket would be so much cooler if it was designed by Martin Joubert. He went all out and created a number of different designs for the 100 USD banknotes, ranging from silly to witty. We especially liked the one with “That’s right. This is real money” written on it, showing just how many cups of coffee, basketballs, and guns you can buy with 100 dollars. All in all, even the currency that we have today is nothing but paper, even though it looks official and strict. There is nothing backing it up except for our noble military that ensures that Gulf States sell their oil using only the “green” kind of currency. (Photo by Martin Joubert)

A model wears an Apache costume in the kids carnival during The 13th Jember Fashion Carnival 2014 on August 21, 2014 in Jember, Indonesia. The 13th Jember Fashion Carnival (JFC) 2014 theme is “Triangle, Dynamic in Harmony” and consists of ten parades which include Mahabharata, Tambora, Phoenix, Pine Forest, Apache, Borobudur, Flying Kite, Wild Deers, Stalagmite, and Chemistry. This street carnival is claimed to be one of the biggest in the world and comprises more than 850 performers parading along 3.6 km road used as the catwalk. (Photo by Robertus Pudyanto/Getty Images)

“These are the stunning shots of one photographer who is putting everyday “selfies” to shame. Paul Zizka, 34, began experimenting with night photography just two years ago and immediately became fascinated with the spectacular scenes he discovered. To create something more unique he started adding himself into the shot – as well as showing others the beautiful surroundings he had been exploring. Using lengthy exposure, the photographer felt that featuring himself in some of his shots – the night sky illuminating the mountains around him – created a relationship between the central figure in the image and the nature around him”. – Caters News. Photo: Paul Zizka in “Galactic Gateway”, Bow Lake, Banff National Park, May 11, 2013. (Photo by Paul Zizka/Caters News)

Japanese craftsman Sumikazu Nakata writes the Chinese character of “victory”, which is a part of the phrase “Certain victory”, as he adds the final touches on a Daruma doll, which is believed to bring good luck, at his studio “Daimonya” in Takasaki, northwest of Tokyo November 23, 2014. Daruma dolls, representing the Indian priest Bodhidharma, the founder of Zen Buddhism in China, is used to bring luck. It is also a favorite item of election candidates where they traditionally paint only one eye on the doll when they start their campaign and paint the other eye if they win in the election. (Photo by Yuya Shino/Reuters)

Kenyan women protest for the right to wear whichever clothes they want, at a demonstration in downtown Nairobi, Kenya Monday, November 17, 2014. A recent incident in which a mob of men surrounded a woman and tore her clothes off, leaving her naked on the street in front of a bus stop after alleging that she was improperly dressed, is one of several such videos that have surfaced online in recent days leading to a groundswell of anger that on Monday prompted around 1000 demonstrators, including a number of men supporting the women's cause, to march through the capital and protest online using the hashtag #MyDressMyChoice. (Photo by Ben Curtis/AP Photo)

To most of us, hand-feeding crocodiles might sound like a one-way ticket to a watery grave. But for Jose Eduardo Chaves Salas, 32, coming within inches of the fearsome creatures’ razor-sharp teeth is all in a day’s work. He runs Jose's Crocodile River Tour on the Tarcoles River in Costa Rica, where tourists can watch him feed crocs up to 17 feet long. Photo: A tour guide shows a thumbs up as he sits on top of a crocodile on the Tarcoles river in Tarcoles, Costa Rica. (Photo and caption by Barcroft Media)