Easy enough to test that, Hudson says this in one of the patent files:
The white saltlike material that is formed from G-ORMEs after
treatment with halogens, and the white oxide appearing material
formed when G-ORMEs are treated with fuming HClO4 or fuming H2SO4
are dissimilar from the T-metal or its salts. The G-ORME will not
react with cyanide, will not be dissolved by aqua regia, and will
not wet or amalgamate with mercury. It also does not sinter at 800C
under reducing conditions, and remains an amorphous powder at 1200C.
Also:
Attempting to quantify the number of electrons remaining in an ORME
is extremely difficult due to the electrons lost to oxidation,
thermal treatment, and the inability, except from theory, to quantify
electron pairs using electron quanta. It is established, however,
that the ORME does not have valence electrons available for standard
spectroscopic analysis such as atomic absorption, emission spectroscopy
or inductively coupled plasma spectroscopy. Moreover, x-ray
fluorescence or x-ray diffraction spectrometry will not respond
the same as they do with T-metals in standard analysis. The existence
of an ORME, while not directly identifiable by the aforesaid standard
analyses, can be characterized by infrared (IR) spectra by a doublet
which represents the bonding energy of the electron pairs within
the ORME. The doublet is located at approximately 1427 and 1490
cm-1 for a rhodium ORME. The doublet for the other ORMEs is between
about 1400 and 1600 cm-1
I would be interested in the results of those tests on
the White Powder reported by James Mann.