The zircon includes Jacinth, or Hyacinth, and Jargoons, which, though differing in colour, are actually the same material species. As a rule amongst modern dealers in Precious Stones the White Zircon is known as the Jargoon, which is often found flawless and so bright as to closely resemble the diamond, [...]]]> http://www.crystalandstones.com/talismans/zircon-as-talisman.html/feed 0 http://www.crystalandstones.com/cutting-stones/cutting-of-precious-stones.html http://www.crystalandstones.com/cutting-stones/cutting-of-precious-stones.html#comments Wed, 16 Sep 2009 14:43:37 +0000 precious stones http://www.crystalandstones.com/?p=53 As existing in a state of nature precious stones do not, as a rule, exhibit any of those beautiful and wonderful properties which cause them to be so admired and sought after as to become of great intrinsic value, for their surfaces have become clouded by innumerable fine cuts or abrasions, because of the thousands [...]]]> http://www.crystalandstones.com/cutting-stones/cutting-of-precious-stones.html/feed 0 http://www.crystalandstones.com/physical-properties/hardness.html http://www.crystalandstones.com/physical-properties/hardness.html#comments Wed, 16 Sep 2009 13:47:09 +0000 precious stones http://www.crystalandstones.com/?p=19 Hardness is perhaps one of the most important features in a stone, especially those of the “gem” series, for no matter how colour, lustre, general beauty and even rarity may entitle a stone to the designation “precious,” unless it possesses great hardness it cannot be used as a gem or jewel.

Consequently, the hardness of [...]]]> http://www.crystalandstones.com/physical-properties/hardness.html/feed 0 http://www.crystalandstones.com/definition-precious-stones/the-origin-of-precious-stones.html http://www.crystalandstones.com/definition-precious-stones/the-origin-of-precious-stones.html#comments Wed, 16 Sep 2009 12:45:01 +0000 precious stones http://www.crystalandstones.com/?p=9 Though the origin, formation, composition, characteristics and tests of each stone will be examined in detail when dealing with the stones seriatim, it is necessary to enquire into those particulars of origin which are common to all, in order thoroughly to understand why they differ from other non-metallic and metallic minerals.

At the very commencement [...]]]> http://www.crystalandstones.com/definition-precious-stones/the-origin-of-precious-stones.html/feed 0 http://www.crystalandstones.com/definition-precious-stones/precious-stones.html http://www.crystalandstones.com/definition-precious-stones/precious-stones.html#comments Wed, 16 Sep 2009 11:09:08 +0000 precious stones http://www.crystalandstones.com/?p=5 What constitutes a precious stone is the question which, at the onset, rises in the mind, and this question, simple as it seems, is one by no means easy to answer, since what may be considered precious at one time, may cease to be so at another.

There are, however, certain minerals which possess distinctive [...]]]> http://www.crystalandstones.com/definition-precious-stones/precious-stones.html/feed 0