This is a scanned copy of an original sales color chart.



The Story of Victoria Stone

by Vyonne Mack-WGMS Club Member

This article was printed in the McPherson Rock Club

Bulletin (Kansas)

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

peridot green.

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.

Reference: Handout Material with Purchase


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