I recently watched a video with Laurence Gardner talking about his
book secrets of the ark, in this video he discussed what he called
monatomic gold powder, which was later renamed to ormus, m-state, or
orme elements. This powder, he claimed, was very unusual in that when
it was heated or cooled the weight of the powder fluctuated indicating
some sort of "anti-gravity" effect. It was also claimed to balance the
activity of the left and right side of the brain and when exposed to
sunlight it would give off a bright flash of light. Also he claimed
that the Egyptians used this powder regularly to balance their
spiritual bodies. Is there any documentation that these effects are
real? or is this guy just in charge of the white gold power business?

Does it sound bogus? If so, then it probably is.

Count this person among the skeptical:

These hucksters offer "water processors" which not only remove
"biological and chemical contiminates [sic]", but "further enhance the
water with select scientifically documented special primary energies".
Unfortunately, none of this documentation seems to be available to the
public, and I consider it highly unlikely that it was done by anyone
with scientific training. They claim that their proprietary process
concentrates

"the Elements of Life (known variously as Monoatomic 'Monatomic'
elements, ORME -"Orbitally Rearranged Monoatomic Elements", ORMUS,
White Powder Gold, M-State, transition group Metal Ions), believed to
be referenced in the Holy Bible and other texts as "The Hidden Manna"
& "Bread of the Presence of God"; a proprietary mix of 13
scientifically documented methods of water structuring; the addition
of a key nutrient Magnesium Dioxide [ MgO2 ] - a naturally occuring
substance in water which scientists in Australia have discovered has
the potential to prolong life 4 to 5 times beyond the normal span."

This ORME rubbish (which apparently involves a weird "monatomic" form
of gold linked to a deuterium (H2) atom) should be a dead giveaway to
any but the most science-challenged suckers that this is nothing more
than alchemical quackery with a bit of Biblical hoogy-moogy thrown in
for good measure.

http://www.chem1.com/CQ/wonkywater.html

Have a good day.

A good test of any such claims is "extraordinary claims require
extraordinary proof". If there is no published evidence, from
independent sources, then you can assume it is bogus

Yes, it is real, I have some sitting in front of me.  Vist
http://www.subtleenergies.com/ormus/whatisit.htm to know more.  Make
some and do some experiments with it.  Answer your own question.