|
The color, shape, composition, and value of the Spinel and Balas Ruby. ... In a scientific point of view the balas ruby does not differ from the spinel; and many special works confound the two completely. But in commerce the stone called Balas has a value very much below that of the spinel.
|
www.jjkent.com/articles/spinel-balas-ruby.htm
www.jjkent.com/articles/spinel-balas-ruby.htm
|
|
|
|
Spinel, especially in its red and blue color varieties, is a historically important gem. Because it was often found with corundum in gem deposits and has a similar color range, luster and hardness, it was, until modern times, used unknowingly as sapphire, and especially ruby. ... Color and Value in Spinel...
|
www.bwsmigel.info/GEOL.115.ESSAYS/Gemology.Spinel.html
www.bwsmigel.info/GEOL.115.ESSAYS/Gemology.Spinel.html
|
|
|
However, spinel tends to be a bit more of a brick red than ruby (which is slightly more purplish). Like all gems, the most coveted are those whose color is intense, while being neither too light nor too dark. The value of red spinel tends to decline as the color diminishes into either light pinks or 'garnety' reds.
|
www.gemselect.com/other-info/spinel-gems.php
www.gemselect.com/other-info/spinel-gems.php
|
|
Natural spinel is one of the most undervalued of the fine gemstones. This situation is likely to change. ... Natural spinel continues to be one of the most undervalued of the fine gemstones. The reasons are largely historical. Because spinel is found in the same locations as corundum, ... Gemstone Articles » Spinel Value...
|
www.gemselect.com/other-info/spinel-value.php
www.gemselect.com/other-info/spinel-value.php
|
|
Color is the most important factor in determining the value of a spinel. While color preferences are always subjective, the ideal spinel colors display intensity and richness without appearing overcast by black or brown overtones.
|
reviews.ebay.com/Spinel-The-Great-Imposter_W0QQugidZ100...
reviews.ebay.com/Spinel-The-Great-Imposter_W0QQugidZ10000000000955289
|
|
Generally, spinels are more flawless than the corundum gems, therefore visible cracks or flaws reduce considerably their value. Many commercial or «native» cut spinel tend to be too shallow. This is due to the fact that the best crystals often occur in flattened octahedral and twinned stones.
|
www.gemsbrokers.com/gemstone/gems_and_gemology/spinel_c...
www.gemsbrokers.com/gemstone/gems_and_gemology/spinel_choosing_tips.htm
|
|
Strategy - Value Creation ... What is Value Based Management? ... Managing for Value MfV Insead...
|
www.valuebasedmanagement.net/
www.valuebasedmanagement.net/
|
|
Imagine that the total value of the promissory notes is only $850. Now the bank is in the same situation with less assets than their liabilities. Solution; How can this possibility (or likelihood) of insolvency be eliminated?
|
valuesystem.livejournal.com/
valuesystem.livejournal.com/
|
|
Gemstone properties and spiritual values of Spinel gem stones. Mohs hardness and gemological properties. Fire Mountain Gems and Beads Jewelry Supply. ... Lustrous orange-red spinel bead chips are like tiny tongues of fire. Until only 150 years ago, spinel was thought to be a ruby. Now classified as an individual mineral,
|
www.firemountaingems.com/gemstones/_spinel.htm
www.firemountaingems.com/gemstones/_spinel.htm
|
|
