§Present address: Laboratoire Cristallographie et sciences des Matériaux, 6 Boulevard du Maréchal Juin - F-14050 CAEN cedex 4 France. Article Views are the COUNTER-compliant sum of full text article ...

Rolex’s presence at Watches and Wonders 2026 – the world’s most important and biggest watch tradeshow – was built around a single, big idea: celebrating 100 years of the Oyster Perpetual case, the ...

Rolex has unveiled its most significant collection in years. Seven new watches, including a centenary Oyster Perpetual, an all-new gold alloy, a reborn regatta chronograph, and a Daytona unlike any ...

There’s something about a watch that doesn’t look like every other watch on the planet. Walk into any room full of grown men who care about this stuff and you’ll spot plenty of black dials, blue dials ...

Baltic has a strong reputation for offering gorgeous tool watches with vintage-inspired looks and respectable specs at remarkably fair prices. While the brand has dabbled in dress watches, none have ...

One of the biggest trends of 2024 was the massive embrace of watches with stone dials. Collectors were scooping up vintage Piagets while modern brands seemed to scour the earth for every piece of onyx ...

No sooner have the words “Oh you ate that down, queen” been uttered mid-conversation with the most casual deadpan by Padma Lakshmi, than she is subjected to one of the most universally humbling ...

Repository related to the manuscript "Automatic Gemstone Classification Using Computer Vision" by Bona Hiu Yan Chow and Constantino Carlos Reyes-Aldasoro published in the Minerals MDPI journal, 2022, ...

Figure 1. This group of rock crystal quartz from Brazil shows vibrant blue dumortierite inclusions. The largest rough crystal weighs 139.79 ct, and the faceted stone weighs 15.47 ct. Photo by Kevin ...

This is my quartz collection. The specimen sizes vary from single millimeter Herkimer Diamonds to a six-inch smoky quartz sheet. This page is laid out less formally than my other pages - I've listed ...