Raw and untouched, minerals are occasionally unearthed as specimens of exceptional beauty and rarity. When used for ornament-as an intarsia box, a carved instrument, sculpture or a remarkable piece of jewelry-minerals are altered as faceted gemstones, which meet a maker, ultimately being transformed into works of art. Wilensky, the Chelsea gallery exhibiting the art of exquisite minerals, celebrates craftsmanship that turns nature's marvels into the extraordinary. This winter, "Gemstone Masterpieces" debuts at the Wilensky Gallery. Featuring four world-renowned artisans, Paula Crevoshay, Manfred Wild, Nicolai Medvedev, and Naomi Sarna, each contemporary has mastered a gemstone medium, releasing an aesthetic vision from its mineral matrix.