Victoria Stone is also known as “Imori Stone”,
named after it’s Japanese creator, Dr. Imori. It is
not an artificial or fake stone. What Dr. Imori was
able to accomplish was to actually blend several
different minerals using a special process known
only to him to come up with an Imori Stone,
commonly called Victoria Stone.
This beautiful reconstructed gem is mineralogically
similar to Nephrite Jade. It has a harness of six,
specific gravity of 3.02 and a refractive index of 1.62.
It was laboratory produced from natural raw
materials such as quartz, feldspar, magnesite,
calcite, fluorspar, etc. for a total of seven different
minerals-fused together under high pressure and a
high temperature and again mineralized to make this
gem by adding special crystallizers and habit
This is not an imitation or synthetic but is a
reconstructed natural stone. The boule of Victoria
stone was slowly cooled down for 35 to 40 days to
make it crystallize into the pretty fan shapes.
Victoria Stone is minerlogically similar to nephrite
jade, but the arrangement of the actinolite crystals
is different. Instead of the crystals interlocking and
tying together as they do with jade, they have
crystallized in fan shapes to provide the beauty of
the stone. As a result of this difference, the rough
stone is more likely to crack or splinter if overheated.
Victoria Stone could be bought by the boule or in
slices when it was produced in 15 different colors
from 1960 to the 1980’s –green, sky blue, reddish
purple, yellow green, blue green, sky indigo,
chocolate, yellow, deep indigo, white, quiet green,
quiet yellow, quiet blue, grey and black.
To cut Victoria Stone, cut it first lengthwise, then let
it set for 24 hours; then you can go ahead and slice
it using normal cutting procedures, using plenty of
water to keep it cool so it won’t shatter.
First sand on sharp 220 grit sanding cloth, then
sharp 320 cloth, with a final sanding on a worn 320
cloth. A quick and easy polish can then be obtained
finishing on a dry leather buff with tin oxide.
The transparent Victoria Stone that is used for
faceting is composed of di or trisilicates of earth
elements and alkali metals. The hardness is 5.5 to
6, specific gravity of 3.02 and a refractive index of
1.12. It was quickly cooled down in one day so that
it wouldn’t crystallize into patterns.
The faceted Victoria Stone came in 8 colors,
including sapphire blue, emerald green, amethyst
purple, ruby red, topaz, aquamarine, garnet and
Dr. Imori died without confiding in anyone how the
process worked and no one has been able to
duplicate it. There is only a limited and nonreplenishable
supply of Victoria Stone in existence,
when this material is used up to make jewelry and
cabochons, it will become scarcer and about
impossible to find.