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Leo
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Sagittarius
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Capricorn
Hyacinth for Aries, Scorpions and Cancers: strength and courage. It intervenes in support in very difficult situations.
Its name comes from the Arabic "zargoun" muting in "jargon", meaning vermilion. It is known since antiquity, but under different names.
It may be colorless (rare), but also yellow, brown, orange, blue to blue-violet (called starlite) ... and mostly brown green and dark red, the fire red color being called hyacinth.
Its high content of radioactive elements leads to sizable variations of physical constants: cubic zirconia is called "metamict".
Its high refractivity and high dispersion give it a vivid and intense shine. There is a zircon with a chatoyancy effect.
It is found in alluvial deposits, in rolled crystals, in Burma, Cambodia, Sri Lanka, Thailand, Brazil, Australia, Korea, Madagascar, Mozambique, Nigeria, Tanzania, Vietnam ...
In France, the Riou Pezzouliou ore deposit, in Haute-Loire, near Le Puy en Velay, has had its moment of fame, and has delivered beautiful crystals.
It has often been confused with other stones such as tourmalines and diamond.
He can not bear the shocks, and high pressure. But it has a bright and intense luster. The colorless ones are brilliant or rose cut, the colored ones are step cut.
Sensitive to shocks to the edges of its facets, otherwise stone of a beautiful shine, easy to maintain as resistant to heat, to household products. Zircons having been heated to make them blue, for example, are much more fragile.
aquamarine , andradite , chrysoberyl , diamond , grossular , hiddenite , sapphire , sinhalite , titanite , topaz , tourmaline , vesuvianite
It would be a "stone of strength", of high energy, focused on earth and it is assigned a strong power. Bringing strength, should be for all those who feel the need to compensate a weakness. The colorless one would help successful business. Containing many inclusions, some radioactive, zircon would possess a great power: to use with care. Being a red stone, it is not recommended for the aggressive, the angry, it could be used on almost all the chakras.
By heating between 800 and 1000 ° C, the brown zircons, very common , turn to colorless or blue, but these colors are unstable.
We can synthesize zircon, but it is only of scientific interest, while the synthetic zirconium oxide is used as a substitute to diamond.
Currently, there are on the market some light blue cambodian zircons, of a beautiful effect, obtained by heating.
zirconium silicate
Main color : red
Other colors : blue, brown, colourless, yellow, orange, green, purple
Color of streak : white
Luster : adamantine, resinous
Hardness : 6.5 to 7.5
Density : 3.93 to 4.75
Cleavage : indistinct
Fracture : conchoidal
Transparency : transparent
Refractive Index : 1.810 - 2.024
Double refraction : 0.047
Strong, positive uniaxial
visible double refraction : yes
Dispersion : 0,039 (0.022)
Pleochroism : very weak
Number of colors : 2
Vary depending on colors
Absorption spectrum : 653
Bands varying depending on the origin and composition
light blue zircon spectrum system
yellow zircon spectrum system
brown zircon spectrum system
Fluorescence : weak
Orange - yellow
Inclusions : inclusions modified by the presence of uranium and thorium
Astrological sign : Leo, Sagittarius, Capricorn
Month : december
Hyacinth for Aries, Scorpions and Cancers: strength and courage. It intervenes in support in very difficult situations.