Colloidal Gadolin­ium

Gadolinium is a chemical element with symbol Gd and atomic number 64. It is a silvery-white, malleable and ductile rare-earth metal. It is found in nature only in combined (salt) form. Gadolinium was first detected spectroscopically in 1880 by de Marignac who separated its oxide and is credited with its discovery. It is named for gadolinite, one of the minerals in which it was found, in turn named for chemist Johan Gadolin. The metal was isolated by Paul Emile Lecoq de Boisbaudran in 1886.

Gadolinium metal possesses unusual metallurgic properties, to the extent that as little as 1% gadolinium can significantly improve the workability and resistance to high temperature oxidation of iron, chromium, and related alloys. Gadolinium as a metal or salt has exceptionally high absorption of neutrons and therefore is used for shielding in neutron radiography and in nuclear reactors. Like most rare earths, gadolinium forms trivalent ions which have fluorescent properties. Gadolinium(III) salts have therefore been used as green phosphors in various applications.

Gadolinium is used to make gadolinium yttrium garnets which have microwave applications. Gadolinium compounds are used as green phosphors in color television picture tubes. Because of its magnetic properties, gadolinium is also used in intravenous radiocontrast agents in magnetic resonance imaging (MRI).


At the top of the lanthanides is Gadolinium. It is in stage 10, the same stage as Niccolum (ironseries) and Palladium (silverseries).

With Gadolinium the insecurity makes place for confidence. While in stage 9 perfection (virgo) was combined with insecurity (cancer), is in stage 10 the perfection combined with confidence (leo).   

Ego development, setting yourself apart from the rest of the world. Becoming your own person. Self-expression, being true to your inner nature, acting from the heart. Dawning awareness of self in relation to others. Ego, self-centred, arrogant. Artistic or creative expression. Needs to be a center of attention, likes to be noticed and appreciated, ego-strokes. Personal integrity, true to self, honorable, trustworthy, self-assured, confident.

So stage 10 is the phase of confidence (leo) and perfection (virgo) in the totality of the lanthanides. It is the final result of the development of the self.

Here with Gadolinium the individual has complete self-control. And it is not before the next stage that the control gets disturbed by ‘the other’ (libra).

Colloidal Gadolin­ium

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