Tag Archive for Diamond

Geologists from Virginia Commonwealth University and elsewhere have found new evidence of bolide impact signatures within specimens from the Massive Australian...

Around 12,800 years ago, Earth collided with fragments of a disintegrating comet, triggering Younger Dryas climate change; this event created environmental...

While it is known that for diamonds to form there needs to be carbon deep in the Earth, and for these diamonds to turn pink they must be subjected to forces...

A team of researchers from the Humboldt-Universität zu Berlin and the Ferdinand-Braun-Institut has succeeded in generating photons with stable frequencies...

Lonsdaleite, a rare hexagonal form of diamond found in ureilite meteorites, formed shortly after an inner solar system dwarf planet collided with a large...

Carbon plays a vital role in geological processes occurring in the Earth’s interior. While most carbon on our planet exists in its core, whether or not...

Calcium silicate perovskite (CaSiO3) is arguably the most geochemically important phase in the Earth’s lower mantle, because it concentrates elements...

A team of scientists from Australia and the United States has created two types of diamond — regular diamond and a diamond-like phase called lonsdaleite,...

Extrasolar planets hosted by stars with sufficiently high carbon-to-oxygen ratios could be made of diamonds and silica, according to new research by Arizona...

An international team of scientists has created carbon nanolattices — constructed from closed-cell plate-architectures — that are stronger...

A team of geologists from the University of Alberta, Northwestern University and the University of Glasgow has found a previously unknown mineral in a...

A team of physicists at the Yokohama National University, Japan, has successfully demonstrated quantum teleportation — the remote exchange of quantum...

So-called fibrous diamonds, which are cloudy and less appealing to jewelers — and less often, gem-quality diamonds — trap and preserve fluids...

A new theory on the thermal evolution of Earth explains why the planet’s upper mantle was cool enough to produce diamonds in the Archean Eon between...

Blue (type IIb) diamonds owe their color to boron, an element abundant in the Earth’s continental and oceanic crust. According to new research led by...

The ancient cores of Earth’s continents are called cratons. Shaped like inverted mountains, they can stretch as deep as 200 miles (320 km) through the...

A faint and mysterious stream of microwaves emanating from young star systems far out in the Milky Way Galaxy could be caused by nanodiamonds about 1.5-2.2 nm...

An international team of researchers from Hong Kong, Singapore, Korea and the United States has demonstrated that nanoscale (300 nm) single-crystalline...

The Almahata Sitta meteorites — diamond-bearing space rock fragments that rained down on the Nubian Desert in Sudan in 2008 — are remnants...

An international team of scientists from the United States and Canada has discovered the first direct evidence that aqueous pockets may exist as far as...