Inner Secrets Of Gemstones

GEMSTONES

1- What is GEM
2- What are the inner secrets of gemstones?
3- How are gem material formed?

GEM

When we see beautiful GEM the first question is "is it real" and "is it valuable"?

Gem material are those used for adornment or decoration.

And have particular attributes or value acceptability.

ATTRIBUTES OF GEMSTONE

Beauty
Durability
Rarity

GEM MATERIAL FORMED

Gem material are made up from countless atom. In most gems these atoms are orderly, regularly in repeating arrangements. Gemstones formed by geological process inside the earth or its surface. Earth is a store of chemical elements combined in different ways. These combination are constantly being changed by earth processes. Earth crust consists of ridges interlocking plates which move relative to one another. Oceanic plates descend into the mantel at destructive plate margins. Molten rock rises through the crust. Rocks are changed by heat and pressure. Materials weathered from mountains are washed into the sea. Rock, Minerals and Gems are formed and transformed amid the earth's ceaseless activities

Traditionally, gemstones were classified into precious stones and semi-precious stones. Only four types of gemstones were considered precious. They were:

1-Diamond

2-Ruby

3-Sapphire

4-Emerald

Nowadays, all gems are considered "precious," although the four original "cardinal gems" are usually - but not always - the most expensive. There are over 130 species of minerals that have been cut into gems with 50 species in common use. These include:

• Agate
• Alexandrite and other varieties of chrysoberyl
• Amethyst
• Aquamarine and other varieties of beryl
• Chrysoprase
• Chrysocolla
• Feldspar (moon stone)
• Garnet
• Hematite
• Jade-Jadeite and Nephrite
• Jasper
• Lapiz Lazuli
• Malachite
• Obsidian
• Olivine (peridot)
• Opal
• Pyrite
• Quartz
• Spinel
• Tanzanite and other varieties zoisite
• Topaz
• Turquoise
• Tourmaline
• Zircon

Artificial materials used as gems include:

• High-lead Glass
• Synthetic cubic zirconia
• Synthetic corundum
• Synthetic spinel
• Synthetic moissanite

There are a number of organic materials used as gems, including:

• Amber
• Bone
• Coral
• Ivory
• Jet
• Mother of pearl
• Pearl
• Tortoiseshell