Saturday, May 30, 2015

aquamarine gems

The aquamarine gems attractive known to man since ancient times where used the ancient Egyptians in jewelery was estimated worldwide are very expensive, was to bring these stones from Tubazo island in the Red Sea near the Egyptian coast, it belongs Aquamarine to the family of metal olefin with green olive transparent, which is a silicate iron, magnesium (Mg, Fe) 2 Si and follows aquamarine crystal system rhomboid-based, and the advantage of Bmaxrh shellfish and luster glass ranging hardness between 6.5-7aly according to the hardness scale, and density ranging from 3.22 - 3.45 g / cm 3, and has a refractive index ranging from 1.635 - 1.690.

Aquamarine presence in nature
Aquamarine exists in nature within the igneous rocks basal Kagabro basalt rocks and benchtop base Keldonat and Alserbntanayat and peridotite and also resides within Almtdelmth limestone rocks and is often accompanied minerals pyroxene and garnet and serpentine.

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Olive aquamarine of Harrat Kishb
Aquamarine in Saudi Arabia
We have found stones Aquamarine (olefin green olive transparent) in Aharat basalt modern areas of the trio of the era and the drive associated with the cones basalt Pyroclastic small sizes of no more than 3 mm, and there are three important sites in Harrat Kishb 200 km northeast of Taif was found where the stones Aquamarine quantities economic and large sizes of up to 10 grams per develop high quality and attractive colors and can be accessed for two of these three site by car and the third location setting calls for the plane to get to it and these sites are:
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Aquamarine Harrat Kishb Mecca area

Cone volcanic No. 5 (V-5): a volcanic cone ranging dimensions 600 m north - south and 400 meters east-west and features Alschoria rocks at this site strongly cohesion and thus difficult to extract granules Aquamarine from the wall of the cone volcanic but can get Aquamarine from the vicinity of the cone grit Volcanic which contain mostly on Slater and gravel from basalt rocks and Mnakdat peridotite and Alberoudiat covering this Brush of grit an area of ​​1.4 km X 1.2 km, have been drilled risk trial work on this site to estimate the reserve The results indicate that the cubic meter of gravel materials containing 7.2 grams of aquamarine.
Cone volcanic No. 100 (V-100): This is called the site by the people of the region Mount Thelman and found stones Aquamarine at the top of the mountain, and specifically in the northern part of it, during the exploration operations by helicopters plane Because of the difficulty of access to the site by car have not been studies Rated enough to preliminary evidence indicates the existence of aquamarine stones with high quality and large crystal sizes.
Cone volcanic No. 27 (V-27): it is called Mount Alskhyeerh It is located within the square Mount Abu Arish near Mount Samar and in this region have been found stones Aquamarine in two locations adjacent two cone volcanic southern The dimensions 200 m north - south and 500 meters east - west The volcanic cone North, which has a nominally 400 m north-south and 200 meters east-west and granules can be drawn from neighboring Aquamarine grit of these cones.
I have been an initial reserve estimate these sites by drilling test, according to results the presence of 37 g per cubic meter in Aquamarine and this is the best result to be reached, which refers to the economic viability of the site and exploitation.






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