Heliodor Mining

Description:-

Heliodor popularly known to be a variety of Beryl is another important member in the family of gems and it is also known as yellow Beryl. A deep study about this precious stone reveals that they are two different stones which can be easily differentiated by their colour, while Heliodor appears to be greenish-yellow the Beryl appears to be in golden colour. When compared to the other members in the family of Beryl this stone is not as common as emerald and aquamarine.

Large deposits of this precious stone was found in Germany, Brazil and Madagascar .These stones exhibit absolute clarity and they are also available in different shapes and sizes. This gem stone is also called yellow emerald by some vendors.The yellow rich colour of this gem is widely used to be cut into gemstones. When it comes to the making of jewellery this precious stones does not have much importance and very few jewelleries are made out of it and it is best suited for earrings,bracelets etc. gem is mostly prevalent among the gem collectors and mineral collectors.

The treatment of this gem is mostly done by heating and it brings about a change in the colour of the gem. The yellow colour found in this gem is attained by the impurities of iron which is present in the Beryl itself.

It is believed that like emerald and aquamarine this gem possess the power to protect the wearer from all kinds of evil .This precious stone enables the wearer to attain wisdom, knowledge, energy and also takes care of financial complexities. One myth associated with this gem is that it helps to find out the problems faced by our dear ones and also to find a solution to their problems.

The greatness and the importance of this gem are raised to a higher level when we come to know the fact that this gem honoured the goddess of spring. Another belief in connection with this stone is that as Heliodor has close connection with the Sun God.The stone of the sun always makes use of the fire and fills the house of the wearer with energy, bliss and strength. As it is considered as a gift of sun this belief is accepted by all. This precious gem is said to bring about a lot of confidence to the wearer and it also cures any problems associated with muscle.

This yellow coloured stone is actually one of the most excellent forms of Beryl. In fact at first only the golden Beryl was called by this name but gradually it was associated with different varieties. This precious gem has its own uniqueness because of its yellow colour which is attained from the iron impurities present in it.

Though this gem was not used for a long period, it made a tremendous come back among the gem collectors after it was given a prominent place and regarded as precious as aquamarine. The jewellery maker's world over also makes use of this gem because of its brilliant colour.

Physical Properties :-

Name

Heliodor

Is a Variety of

Beryl

Alternate Common Names

Golden Beryl

Crystallography 

Hexagonal

Refractive Index 

1.566-1.579

Colors 

Greenish yellow, yellow, yellowish-orange

Luster 

Vitreous

Hardness 

7.5-8

Wearability 

Good

Fracture 

Conchoidal to uneven

Specific Gravity 

2.68-2.72

Birefringence 

0.005-0.009

Cleavage 

Indistinct

Dispersion 

0.014

Transparency 

Transparent to opaque.

Formula

Be3Al2Si6O18 + Fe3+

Pleochroism 

Less distinct than the other beryls. Brownish-yellow to lemon-yellow.

Optics 

Uniaxial (-)

Optic Sign

Uniaxial -

Etymology

From the Greek helios and doron for "gift of the sun," in allusion to the yellow color.

Occurrence

Granitic rocks, especially granite pegmatites.

Inclusions

Long, hollow tubes; needles; fingerprints; negative crystals; chrysanthemums; pinpoints; two-phase inclusions.

Typical Treatments

Dyeing, Heat Treatment, Irradiation

Enhancements

Heating, radiation, dyeing

Phenomena 

Chatoyancy


Natural Occurrence :

Germany, Brazil and Madagascar .

Available Colors :

Greenish - yellow

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