Gems Are Precious Pieces Of Gorgeous Mineral.

Certain rocks such as lapis lazuli and carbon based materials such as amber or jet are considered being gemstones but they are not minerals

. They are called gemstones because they are used for jewelry.

Most gemstones are hard but sometimes soft minerals too are used in jewelry because of their shine.

These soft minerals often have physical properties that have appealing value. Read moreSlotsophold

Gemstones are of great value because of their uncommonness.

There are precious stones as well as semi-precious stones which are used in jewelry.

Gemstones are classified in to different groups, species and varieties. The red variety of the species corundum is identified as Ruby and any other color of corundum is considered sapphire.

The mineral species beryl comes in various colors. The green is emerald, the blue is aquamarine, red is bixbite and the neutral is called goshenitc, heliodor is the yellow and morganite is the pink.

To help the consumer understand the factors used to grade a diamond.

A mnemonic device has been introduced. This device is known as the four Cs. That is for color, cut, clarity and carat.

Diamonds are meant to sparkle, to break down light into its basic rainbow colors, chop it up into bright little pieces and send it to the eye. These things are been done only if the diamond is cut. In its coarse crystalline form a diamond cannot do these things. Read moreAkupunktur Aalborg

Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture and shine.

Some times while the mineral is forming material get trapped in.

In mineralogy this is called inclusion. Flaws within a stone may be present as inclusions.

Some gemstones are solid. Opal, turquoise and variscite are such stones.

Color is the most clear and attractive feature of gemstones.

Gemstones are often treated to enhance the color or clarity of the stone.

The value of the stone can be affected by the type and degree of the treatment.

Heat can improve gemstone color or clarity.

When jewelry containing diamonds have to be heated for maintenance the diamonds should be protected with boracic acid.

Since diamond is pure carbon if not protected the diamond could be burned on the surface or even burned up entirely. Read moreDepression Koebenhavn

But jewelry containing sapphires or rubies is heated it should not be coated with boracic acid or any other substance, because this can etch the surface. These stones do not have to besecured like a diamond.

by: Farid

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