Such a radiant rose-red beauty! Thanx!!
|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
This is a natural untreated strand of lovley olive green stones.They are well cut clean stones.They are cord strung so we recommended re stringing them-we import them like this to save custom delays.This photo is of the actual strand you are bidding on.
Weight 33.40 cts app
Size of beads 3 mm app
length of strand 14 inches app
Peridot is gem-quality forsteritic olivine. The chemical composition of peridot is (Mg, Fe)2SiO4, with Mg in greater quantities than Fe.Olivine in general is a very abundant mineral, but gem quality peridot is rather rare.
Peridot is one of the few gemstones that occur in only one color: basically an olive green. The intensity and tint of the green however depends on how much iron is contained in the crystal structure, so the color of individual peridot gems can vary from yellow-green through olive green to brownish green. The most valuable is considered a dark-olive green color.
Peridot crystals have been collected from some Pallasite meteorites. Peridot olivine is the birthstone for August. It is sometimes mistaken for emeralds and other green gems. In fact notable gemologist George Fredick Kunz discussed the confusion between emeralds and peridots in many church treasures, notably the "Three Magi" treasure in the Dom of Cologne, Germany.
Olivine, of which peridot is a type, is a common mineral in mafic and ultramafic rocks, and it is often found in lavas and in peridotite xenoliths of the mantle, which lavas carry to the surface; but gem quality peridot only occurs in a fraction of these settings.
|Starts||8th Jan 2010 12:59am PST|
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