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Latest Gemstones Stories

2015-05-04 12:23:26

The Natural Sapphire Company of New York congratulates Duchess Kate and the royal family on the birth of their new Princess! NEW YORK, May 4, 2015 /PRNewswire/ -- Announced May 2(nd),

bulletproof clay
2015-04-27 08:34:23

The R&D folks at the US Naval Research Laboratory have once again done their best MacGyver impression, creating something impossibly cool and useful (a new type of bulletproof glass) from seemingly mundane source materials (synthetic powdered clay).

2015-04-22 23:10:28

Avianne & Co. are the exclusive diamond jewelers to artist, entertainers and athletes worldwide specializing in both traditional and

2015-04-09 12:26:33

LONDON, April 9, 2015 /PRNewswire/ -- Zircon majors caution that exploration work may need higher prices to be incentivised in face of market growth Leading

2015-04-08 12:34:33

-- Millions more have access to trusted information on gems and jewelry CARLSBAD, Calif., April 8, 2015 /PRNewswire-USNewswire/ -- GIA's website at

pearls tennessee
2015-04-03 17:47:45

A guest at Puckett’s Boat House restaurant in Franklin, Tenn. got a little more than she bargained for this week when she shucked into an oyster only to find a pearl, then another, and another...until she found 50.

2015-04-01 08:23:38

NEW YORK, April 1, 2015 /PRNewswire/ -- Aria Gems, an American-Afghan company, has become the largest company to legally export Panjshir

2015-03-24 23:06:32

ItsHot.com, a renowned manufacturer, wholesaler, and retailer of diamond jewelry in NY, has recently announced a whopping 60-70% off on its wide range of diamond eternity bands (PRWEB)

2015-03-24 08:25:16

Australian Inventor Reveals Secret To Creating Genuine Opals At Home ADELAIDE, South Australia, March 24, 2015 /PRNewswire/ -- After 10 years of painstaking research and deduction,


Latest Gemstones Reference Libraries

Corallo_vivo
2012-04-03 15:42:00

Precious Coral, (Corallium rubrum), also known as red coral, is a species of marine coral found mainly in the Mediterranean Sea, where it grows at depths from 30 to 1000 feet below sea level. Its habitat is typically rocky sea bottom with low sedimentation, and usually in dark environments, such as caverns and crevices. Most of its shallow range has been depleted by harvesting. While mainly a Mediterranean species, it can also be found in some Atlantic sites near the Straits of Gibraltar...

0_6a42b01beb6063f014e90692f4d40b34
2008-04-30 23:14:23

The Freshwater Pearl Mussel (Margaritifera margaritifera), is an endangered species of freshwater mussel. They are used in the production of freshwater pearls. There are three subspecies. Margaritifera margaritifera margaritifera, Margaritifera margaritifera parvula, and Margaritifera margaritifera durrovensis. M. m. durrovensis is a critically endangered species in Ireland. Photo Copyright and Credit

28_adf4824da8675c1f5b7981afba7891b5
2005-05-26 12:08:48

The mineral beryl is a beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6. The hexagonal crystals of beryl may be very small or range to several meters in size. Terminated crystals are relatively rare. Beryl exhibits conchoidal fracture, has a hardness of 7.5-8, a specific gravity of 2.63-2.80. It has a vitreous lustre and can be transparent or translucent. Its cleavage is poor basal and its habit is dihexagonal bipyramidal. Pure beryl is colorless, but it is frequently...

28_2ed8636e187bcb1f5dad0d65027dc1b5
2005-05-26 11:58:03

Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite is the chief ore of tin today. Most sources of cassiterite today are found in alluvial or placer deposits containing the resistant weathered grains. The best source of primary cassiterite is the tin mines of Bolivia, where it is found in hydrothermal veins. Cassiterite is a widespread minor constituent of igneous...

28_42121cee4c09c0898f52263bea588d54
2005-05-26 11:26:59

Chromite, iron magnesium chromium oxide: (Fe,Mg)Cr2O4, is an oxide mineral belonging to the spinel group. Magnesium is always present in variable amounts, also aluminium and iron substitute for chromium. Chromite is found in peridotite and other layered ultramafic intrusive rocks and also found in metamorphic rocks such as serpentinites. Ore deposites of chromite form as early magmatic differentiates. It is commonly associated with olivine, magnetite, serpentine, and corundum. Chromite is...

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