Emerald mines (Izumrudnye
Kopi; Malyshevskoe deposit), Tokovaya river (Tokovaia river), Malyshevo,
Ekaterinburg (Sverdlovsk), Ekaterinburgskaya (Sverdlovskaya) Oblast',
Middle Urals, Urals Region, Russia
is a rare beryllium silicate mineral that is often found
in pegmatitic pockets associated with other gem minerals
such as Topaz,
is a beautiful gem that is ideal for use in jewelry
because of its high hardness (7.5 - 8.0) and bright white color.
Cut gems have little fire but are very bright. Red Phenakite
gems from Russia are known, but are very rare. Small
gem quality crystals have been found on Pike's Peak
and Mount Antero in Colorado, USA.
Phenakite is one of the few silicate minerals that have a trigonal symmetry.
This symmetry is far more common among carbonates than among silicates.
Phenakite shares the same symmetry with the emerald green silicate
and the fluorescent and closely related
Numerous localities; some for fine crystals are: along
the Tokovaya River, near Yekaterinburg (Sverdlovsk),
Ural Mountains, and at Miass, Ilmen Mountains, Southern
Ural Mountains, Russia. At several places around Kragerö,
Norway. In France, in the Vosges Mountains, at Framont,
Alsace. From near Reckingen, Valais, and many other
places in Switzerland. At Leckbachrinne, Habachtal,
Salzburg, Austria. In the USA, from near Florissant,
El Paso County, and on Mt. Antero, Cha®ee County, Colorado;
on Bald Face Mountain, North Chatham, Carroll County,
New Hampshire; at Amelia, Amelia County, Virginia. In
Brazil, exceptional crystals in the Săo Miguel de Piracicaba
pegmatite, 50 km east of Belo Horizonte, and at Catuqi,
Minas Gerais; in the Socotó mine, northwest of Salvador,
Bahia, and elsewhere. At Klein Spitzkopje, Namibia.
From Anjanabonoina, Madagascar.