sEMIPRECIOUS GEMSTONES 169
AgwaMArine, known as beruj in Hindi, is a light sca-green
v a r l e t y of
transparent beryl gem-hard and transparent
4. g r e e n )
silicate of aluminum
and berylllum in which traces
a
bluc
Aquamarine is
The chromiumn acts as a coloring agent
are found.
chromium
stone a
delicate blue hue. It alsO occurs as yellowish
of
the family of emeralds and contains the
the
gives
belongs to
and beryl. It have the intense
golden that become emerald when they
color ofa fresh blade of grass. Aquamarine
minerals
the
ame similar to color.
in
green
color
emerald and more transparent but light
cheaper
than
aquamarine is associated
with the planet Mercury
is
Like
emerald,
sailors. It is used as asubstitute for emerald.
safety to
provides
and brilliance and,
according to the Greek
and lustre of Indian
rich in
It is used in the ornamentation
Strabo, it was produced in India
geographer
around 45 B.C. to 21 A.D. It was
drinking cups according to S. Ball, a British astronomer, and
before 400
B.C.,
source, according to Pliny, the Roman writer,
chief
was its
India
79 A.D. eyes, and helpful
23 A.D. to heart, pleasant to the
Itis also soothing for the Because of its electrical
electrochemical balance.
in maintaining electromagnetic field of the body and is used
property it helps the helps in
Indian astrologers. Itmercurial
therapists, and
by gemologists, gem restlessness typical of the
Overcoming the anxiety and
Mercury natives.
emperament of ill-posited especially calming if used as
a
all. It is
It can be safely used by pendant. In females it increases feminine
necklace, armlet, amulet, or
qualities.
greenish blue or yellowish blue. The
Aquamarines are mainly
found in South India, but these differ in
yelow variety is also
color from yellow topaz.
known as dantala in Hindi, is an important stone
3. Acbrolte, and is given to patients
ina special mnedicinal preparation for teeth
having dental troubles. belonging to the
Achroite is 2transparent, smooth, brilliant stonesoft it is not uscd
family of itourmaline. Because the mineral is very
in jewelry as much as tourmaline; even then, fine crystals are
shaped in gem and used as a gem.
Because it is form
colorless it is associated with Moon.
It is also 2 and boron and several other
inerals ikea tourmaline.
silicate of alumninur