Monday, 26 October 2015

Facts, lore and description of turquoise flat druzy

Turquoise flat Drusy quartz is an ornamental gemstone which is highly known for its exclusive and striking colour. It is valued in the ancient American as well as Persian civilisations and is still retaining its fame even today. The turquoise specimens are many times polished or even sliced for the collectors. Some are also dyed.

It is mainly porous and it has got a natural waxy shin. Sometimes it’s also impregnated with the help of a plastic liquid in order to increase its lustre and enhance its stability. A lot of false exist of turquoise.

The most common fake of turquoise Drusy quartz that is prevalent is WhiteHowlite Blue Dyed which resembles a lot to Turquoise druzy.


Turquoise many a times comprises of the embedded lustrous flakes of pyrite or it may even have black veins of Oxide running through it. Sometimes it’s inter grown along with the secondary materials of copper specifically Chrysocolla. It may even form as pseudo morph of minerals like Beryl, Apatite, Feldspars, etc.

Crystal formations and aggregates

The crystal formations as well as aggregates are most often, massive, nodular, botryoidally, concretionary as well as reinform. It may even occur in veins, in masses of cauliflower shape, in round balls and even in stalactitical shape.

The crystals o turquoise are rarely found and are restricted to some particular locations where they’re found in the form of minute crystals within the thin rosettes and crusts.

They are opaque and may even be translucent in the thinner sections.

Varieties

The varieties of this druzy include:

1.    Eilat stones

It’s a greenish blue blend of Turquoise, Chrysocolla and some minerals of copper like malachite from mines of copper near Eilat-Israel.

2.    Kingdom- Turquoise

Turquoise from Mineral park mines situated near the Kingman in Arizona is popular for its beautiful shade.

Turquoise is a significant gemstone. The bright shade it has has made it popular throughout various civilizations and now it is one of the most important but affordable gemstones. It is usually in the form of beads or cabochons. However, it might even be ornamental carvings of flowers and animals. The specimens of turquoise Drusy are even famous amongst minerals’ collectors and crystallized variety from Virginia is highly valuable as well as desirable.



Chemical formula
CuAl6(PO4)4(OH)8 • 4H2O
Colour
Turquoise blue, bluish green, sky blue, apple green
Streak
White
Specific gravity
2.5 to 2.8
Hardness
5 to 6
Lustre
Dull and Waxy
Crystal system
Triclinic
Cleavage
None
Tenacity
Brittle
Fracture
Conchoidal
In group
Phosphates
Striking feature
Hardness and colour
Rock type
Metamorphic and sedimentary
Environment
As a substitute to the hydrothermal deposits generally in the arid copper bearing regions


Noteworthy locations

Even though turquoise is available all throughout the world, a vast chunk of Turquoise originates in South-West US. The most significant as well as classic locality of the gemstone is Nishapur in Iran. Here it is being mined from the time of Ancient Persians. The other historic locations of Turquoise include Serabit-el-Khadim in Sinai Peninsula, Eilat, Egypt and Israel where it’s mainly related with Chrysocolla and is known as the Eilat Stone. Mexico also has various significant locations of turquoise.

Turquoise which has a beautiful color and is of good quality is quite popular at Kinsman in Arizona where the rarely found small crystals are also found in the druzy habit. Other significant deposits of turquoise include Globe Miami district, Copper cities mine, Mexico, Gila and Co., etc. However the most perfect and apparent Turquoise crystals occur in the form of prominent micro crystals which are imported from Lynch Station in Virginia.

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