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Showing posts with label blue. Show all posts
Showing posts with label blue. Show all posts

Tuesday, December 12, 2006

Sterling Silver Jewelry: The Ancient Etymology Of Sapphire

The ancestry of the word Sapphire is obscured by thousands of years of etymological growth, and its roots entangled with names used to describe other gemstones both ancient and modern. Although it surfaces in many of mankind’s earliest texts, it is probable that what many of the ancients in Europe and the Near East recorded as being Sapphire is now what we call lapis lazuli. To make matters even more complicated, the gem that ancients referred to as Oriental Amethyst was probably the gem that we know as Sapphire...

The modern English word Sapphire originates from the Latin ‘Sapphirus, which in turn is derived from the Greek ‘Sappheiros.’ The Greek word ‘Sappheiros’ originated from ancient Hebrew texts and their word ‘Sappir’ meaning precious stone. It is quite possible that this Hebrew term was introduced into the Greek language as a direct result of the translation of the Bible’s Old Testament, which was translated from Judaic and Aramaic into Greek in Ptolemaic Alexandria circa 300 B.C. Written and compiled from 1500 B.C. to 90 A.D., the Bible’s old and new testaments provide us with what is perhaps the earliest written record of the Hebrew word ‘Sappir’. It appears in the Bible’s oldest book, the Book of Job, chapter 28 verse 6 which dates from approximately 1400 B.C: “The stones thereof are the place of sapphires, and it hath dust of gold.


From beginning to end, the two books of the Bible include passages that draw parallels between the glinting stars in the blue firmament of the heavens and the Sapphire. However, as most gemologists and etymologists agree the description of ‘Job’s’ gem containing “…dust of gold”, does not describe the physical properties of what we call Sapphire.

This corundum conundrum is further compounded in the works of the Greek philosopher Theophrastus, successor to Alexander the Greats' tutor Aristotle, and the world’s first mineralogist, who in 314 BC wrote: "…the sapphirus, is speckled as if with gold". A similar observation was made some three hundred years later in 77 A.D. by ‘Pliny the Elder’, who wrote the world’s first encyclopedia entitled ‘Natural History’. In chapter 37 of the ninth book Pliny states: "…for the Saphirrus also glittereth with markes and prickes of gold." Both of these descriptions provide almost irrefutable evidence that the ‘Sapphirus’ of the ancients with its golden properties was not our Sapphire, but what we now call lapis lazuli.


Lapis Lazuli, translated from Latin as ‘Stone of Azure’, was a prolific gemstone found in ancient Egyptian and Mesopotamian burial sites dating as far back as 3000 B.C. Lapis Lazuli fits the ancient gemstone descriptions of Sapphire because in its normal state it contains particles of a mineral called Iron Pyrites. This mineral is also known as ‘Fools Gold’, because of its close resemblance and subsequent confusion with gold.

Ironically, the answer to our quest for Sapphire’s earliest roots may lie in the same book by Pliny. However, it lies in an earlier chapter that describes one of the four varieties of a gem variety that was known to the ancients as Indian or Oriental Amethyst. Pliny states: “… A third stone (Variety of Oriental Amethyst) of this class is of a more diluted color, and is known as ‘Sapenos…” Although, there is a lack of conclusive proof, Pliny’s description of ‘Sapenos’ as a type of bluish-violet Amethyst appears to be far closer both in etymological name, color and geographical location to what we now know as Sapphire. It is quite probable that Pliny's description of ‘Sapenos', as a type of Oriental Amethyst, was the birth of the term we now use for the modern Sapphire.

Copyright © SilverShake Corporation. All Rights Reserved.

Written for SilverShake, an online retailer of
gemstone silver jewelry and sterling silver jewelry at wholesale prices. Purchase today and get silver jewelry worth up to $60...Free!

Sunday, November 19, 2006

Sterling Silver Jewelry: The Definition Of Topaz

Topaz (To-Paz): The roots of the word Topaz first burgeoned into life in ancient Egypt, circa 300B.C., under the Pharaoh Ptolemy II. However, what the Egyptians, Greeks and subsequent Romans came to refer to as Topaz was in fact what we call Peridot. In reality the mineral known as Topaz, has only been officially recognized since the 17th Century. At that time, hundreds of kilos were sourced from Saxony in East Germany, later massive deposits were also found in South America.

Topaz was first discovered in the ‘New World’, under the reigning Portuguese colonialists, in the Brazilian mines of Villa Rica near Ouro Prêto. From these mines came a colored Topaz never seen before. Owing to the Portuguese royal family’s love of these gems, this variety received one of Topaz’s most prestigious titles: Imperial.

‘Imperial’ Topaz is the most coveted of all the Topaz family. Its name is used to denote colors that fall between a scintillating golden and orange-brown, for the most part Imperial Topaz is sourced from the mines of Ouro Prêto in Brazil. Another highly prized Topaz is the pink variety, which is sourced from Brazil and also the Katlang region in Pakistan. Most Pink Topaz derives its color from chromium present within the gems crystal structure. Heating the dark-yellow variety of Topaz can also produce Pink Topaz. Naturally occurring Yellow and Brown Topaz owe their colors to ‘Color Centers,’ the infamous ‘Swiss,’ ‘Sky’ and ‘London’ Blue Topaz are often derived from these two sources by a process of irradiating ‘Out’ the Yellow and Brown ‘Color Centers.’

Color centers are the cause of color within some Topaz crystals; they result from defects within the atomic structure of the crystal, which cause certain colors to become visible by the absorption of other light waves. Color centers are formed due to exposure to gamma rays; this irradiation may be from both natural and artificial sources. When exposed to radioactive sources, both natural and artificial, electrons within the atomic structure of Topaz can be removed from their normal sites. Some electrons are bounced around, eventually coming to rest in a vacant part of the atomic structure called a trap. Electrons in specific traps absorb a certain range of light wavelengths, the visible color that you see is the color that is not absorbed by these trapped electrons.

Naturally occurring ‘Colorless,’ or ‘White,’ Topaz takes a very high polish and is wonderfully clear and transparent. A relative new comer to the Topaz family is Mystic Topaz, which is produced by taking ‘Colorless’ Topaz and applying a thin layer of titanium oxide via physical vapor deposition. This process is similar to the method used in coating camera lenses, and produces an iridescent effect across the gems surface. Mystic Topaz, coming in a wide variety of colored nuances, is extremely popular and one of the most successful colored gemstones available today.

Topaz crystallizes from fluorine-bearing vapor in last stages of solidification of igneous rocks. In mineralogical terms it is a silicate of aluminum and fluorine denoted by the chemical formula Al2SiO4(F,OH)2. It is found in association with granite rocks, within pegmatite veins and in secondary concentrations such as streambed alluvial deposits.

Topaz crystals form in the rhombic system of crystallization, and its crystals are prismatic. Topaz possesses a perfect basal cleavage; therefore gems should be handled with care. Despite this fact, Topaz is one of the hardest minerals known to man attaining an 8 out of 10 on the Moh’s hardness scale, second only to corundum and diamond. Most Topaz is transparent to translucent with a vitreous glass-like luster. However, naturally occurring Pink and Red Topaz is often included due to the presence of the impurity chromium. These pink colored Topazes are so rare that the inclusions are, much like with ruby, tolerated and even valued as identifying fingerprints.

Topaz is sourced from the mines of Ouro Preto and Minas Gerais in Brazil, the Ural and Ilmen Mountains in Russia, Pakistan, Sri Lanka, Czech Republic, Saxony, Norway, Sweden, Japan, Mexico and the United States.

Copyright © SilverShake Corporation. All Rights Reserved.


Written for SilverShake, an online retailer of topaz silver jewelry and sterling silver jewelry at wholesale prices. Purchase today and get silver jewelry worth up to $60...Free!