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A sample of pebbly rock that U of A researchers took from an outcrop in Nunavut. The rock was found to contain both gold and diamonds—a rare combination similar to that found in the world's richest gold deposit in South Africa. (Photo: Supplied)

Diamonds found with gold in Canada’s Far North offer clues to...

Pioneering new research has helped geologists solve a long-standing puzzle that could help pinpoint new, untapped concentrations of some the most valuable rare earth deposits. Credit: Michael Anenburg, ANU.

Geologists solve puzzle that could predict valuable rare earth element deposits

Larger: A back-scattered electron image of a microscopic crystal of priscillagrewite-(Y) enclosed in fluorapatite. Inset: An optical image of the same crystal. Credit: American Mineralogist / Irina Galuskina et al.

Priscillagrewite : New mineral named in honor of renowned Nebraska geologist

A rough diamond from Kankan, Guinea, that was analyzed in a new study led by a PhD student at the U of A. The imperfections inside the diamond are small inclusions of a mineral called ferropericlase, which is from the lower mantle. Credit: Anetta Banas

Uncovering new understanding of Earth’s carbon cycle

Location and geological map of Yukinoura district, Saikai City, Nagasaki Prefecture, Japan. Credit: Professor Tadao Nishiyama

Japan’s geologic history in question after discovery of metamorphic rock microdiamonds

Quartz is one of the most common crystals on Earth

Meteorite strikes may create unexpected form of silica

Top 15 Most Expensive Gemstones In The World

Top 15 Most Expensive Gemstones In The World

A Trapiche emerald from Muzo Mine, Colombia. Credit: Luciana Barbosa/Wikipedia

Trapiche Emerald : What is a Trapiche Emerald? How Does a...

The Pink Star diamond, which fetched the highest price ever for a jewel offered at auction, is displayed at Sotheby's in Hong Kong on March 29. Credit: Vincent Yu/AP

Pink Star Diamond : The largest known Pink Diamond

Amethyst-Geode in the parent rock

How do the Geodes get Colorful?

zultanite gemstones, rough and crystal form lighting

Zultanite : What is Zultanite Mineral? Where to find Zultanite?

Purple Amethyst

Purple Amethyst : What causes the purple color of amethyst?

The Roebling Opal

Roebling Opal : Amazing Rare blue and green Opal Found in...

Graphite & Hexagonal Diamond

Study shows diamonds aren’t forever

Blue Diamond

New model shows how diamond-carrying rocks formed in Northern Alberta

Photomicrograph in crossed polars of precious-metal bearing peridotite. Note the optical zoning (light/dark bands) in the plagioclase (grey coloured mineral) in the central part of the image. The occurrence of this zoning was the focus of the study in question. The width of the image frame is 4 mm. Credit: Nat. Geosci. (2020).

Scientists find evidence of how platinum metals form under 60 million-year-old...

The Largest Peridot in the World

What is The Largest Peridot in the World?

Peridot

Peridot : What is Peridot? Where is Peridot found?

Minerals on hand

Rare Gems & Minerals in Texas

Minerals on Hand

Mines in Texas & New Mexico : Mines Where You Can...

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