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crystals,
gems and minerals
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Pearl
(June Birthstone)

Pearls in shades of pink
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Scientific:
Pearls are organic gems
grown within oysters and a few other
mollusks. Pearls are formed when a foreign
object (like a tiny stone) has made its way
into the mollusk's shell. The mollusk
secretes nacre, a lustrous substance that
coats the intruding object. As thousands of
layers of nacre coat the intruder, a pearl
is formed; this process takes up to seven or
eight years (an oyster's useful life span).
"Cultured" pearls are those in which man
implants the intruding material and the
mollusks are cared for in a protective
environment ("farm") while it does its
coating work (6 months to 4 years, the
longer the thicker).
Practically all pearls available today are
"cultured" pearls. The oysters that have
produced these pearls had man's help in
getting the pearl started, and are kept and
cared for in commercial pearl farms. Only
one out of four cultivated oysters live to
make a marketable pearl. Natural (ALL
natural) pearls are quite rare and quite
valuable. The word "pearl" should be
understood as "cultured pearl" unless noted
otherwise. |
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The beauty
of cultured pearls is based on their outer
layer (or the entire pearl in the case of
natural pearls). This outer layer is mainly
aragonite (calcium carbonate) and an organic
substance called conchiolin. These two
substances overlapping alternately at and
near the surface create the "orient" of the
pearl.
Pearl culturing is done primarily in Japan,
the South Seas, the U.S., and China.
Cultured pearls are Japan's largest marine
export valued at $320 million in 1988. More
than 2,800 pearl farms dot Japan employing
over 100,000 people. Natural pearls came
from Ceylon, Scotland, Norway, and the
Persian Gulf.
Pearls may be bleached to improve the
whiteness. Heat and chemicals are used to
create grays and blacks. Colors can be the
result of dyes (all colors) or irradiation
(blues and grays), or the mollusk's diet.
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Some
pearls are made of materials remanufactured
from crushed shell material. Some make their
"pearl" from fish scales, snail shells,
teeth (of the sea cow), and mussels.
Generally, the search is to find evidence of
a central bead thus proving it's cultured.
Usually looking inside the drill hole with a
bit of magnification will spot this - you'll
see a dividing line between the external
nacre and the internal bead. The nacre is
often less than 1.0mm thick. If you see no
evidence of a bead this way, then further
testing is required. This could go all the
way to x-raying to prove there is no bead.
There is also the "rub it on your teeth"
test (looking for grittiness which is
evidence of nacre), which, if found, could
indicate cultured or natural as opposed to
imitation. This is not a very reliable test
as some imitations have achieved
"grittiness." It's rather uncouth, too. |
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Here are
some Pearl terms:
Natural Pearl
A natural pearl (also called a genuine
pearl) is a pearl that was produced in an
oyster, freshwater mussel or other mollusk
as a reaction to a tiny invading object that
happened to be caught inside its shell.
Mabe Pearl
Mabe pearls are large, hemispherical
cultured pearls that grow attached to the
inside shells of oysters. Mabe pearls are
used in earrings, pins, and rings.
Blister Pearl
A blister pearl (also called a bouton pearl)
is a pearl that developed attached to the
inside of a mollusk's shell. This type of
pearl must be cut off the shell, and is
therefore hemispherical. Because of their
shape, blister pearls are mostly used for
earrings. |

Blister Pearls
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Biwa
Pearl
Biwa pearls are freshwater pearls from Lake
Biwa in Japan. These irregularly shaped
pearls are smoother and more lustrous than
most other freshwater pearls.
Seed Pearl
Seed pearls are tiny, round pearls that are
less than 2 mm in diameter and weigh under
1/4 grain. Seed pearl jewelry was popular
from the mid- to late-Victorian era, when
the tiny pearls were strung on horsehair to
form intricate designs and were also used as
accents on other jewelry.
Freshwater Pearl
A freshwater pearl is a pearl that was
harvested from a freshwater mussel (a
mollusk). These pearls are frequently shaped
like crisped rice cereal, and are less
valuable than oyster pearls. Biwa pearls are
very good quality freshwater pearls. |
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Baroque
Pearls
Baroque pearls are irregularly shaped
pearls. Baroque pearls can be natural or
artificial.
Cultured Pearl
Cultured pearls are pearls produced by
oysters that have been surgically injected
(nucleated) with bits of mussel shell. After
5-7 years, the oysters are retrieved and the
pearls are harvested. This method of
manufacturing pearls was invented in 1893 by
Kokichi Mikimoto (see history and lore).
Majorca Pearl
Majorca pearls are imitation pearls made by
dipping glass beads repeatedly in a solution
of "pearl essence," a year's supply of which
requires the scaling of 100 million fish. |

golden and pinkish pearls
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Extreme
dryness is damaging to pearls, and they are
very sensitive to acids, hair spray,
cosmetics, and perspiration. Since pearls
have such a low hardness, they should be
worn and stored in such a way that they do
not come in contact with metals or harder
stones that may damage them. Make sure that
they are not exposed for a long time to
direct sunlight, especially ultraviolet
rays. The protein in pearls becomes yellow
under sunlight. The calcium carbonate in
pearls dissolves in human sweat or oil from
the skin, and this will diminish the pearl's
luster. To prevent this, wipe pearls well
with a soft cloth immediately after taking
them off and before putting them away.
Hardness: 2.5 - 4.5
Chemical composition: CaCO3, Calcium
carbonate + organic substances and water |

various types of white pearls
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According to Pliny the Elder,
writing a the end of the first century AD,
Cleopatra bet Mark Anthony that she could
serve him a dinner so expensive it would
never be equaled. The banquet was indeed
luxurious but no more so than Cleopatra had
served on other occasions. Mark Anthony
thought he had won the bet until Cleopatra,
who was wearing two huge pearls on her ears
valued at $1,300,000 in today's money,
removed one and dropped it in her huge cup
of wine where it quickly dissolved. She
drank it down and the judge of the wager
then declared that Anthony had lost the bet. |

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Cartier & Co. traded two
strands of pearls for a magnificent building
on New York's Fifth Avenue in 1916.
Commoners were once prohibited from wearing
pearls. From the 13th to the 16th centuries,
only European royalty could wear pearls.
Christopher Columbus was convinced he had
discovered Japan when he found Indians in
the New World wearing pearls.
Pearls were favorites of English royalty.
Many of their gowns were studded extensively
with pearls.
Marie Antoinette designed a coffee cup using
pearls. Since pearls are considered to be
the most feminine of gems, Marie
Antoinette's choice to use pearls is very
much in style of a woman who reverently
sought femininity. |
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Mini Bio:
Mikimoto is a manufacturer of fine cultured
pearls (Mikimoto is to pearls what Kleenex
is to tissue). Kokichi Mikimoto (1858-1954)
became the King of Cultured Pearls from
rather humble beginnings. As a teenager he
sold noodles and vegetables. As his business
developed he added shells and pearls to his
offerings. And by 1890, he was raising his
own cultured pearls. Mikimoto's battle was
up hill. And he climbed that hill by
educating the public and jewelers about
cultured pearls. He did battle with the
French who sued him at one point because he
competed with their selling of natural
pearls. So what did Mikimoto do? He sued
producers of imitation pearls who sold them
as cultured or natural. He finally came to
terms with the French whom he convinced to
tax cultured pearls just as they taxed
natural pearls - putting them both on equal
footings. As one of his last international
tasks, he helped Japan and the U.S.
re-establish relations after World War II. |

Lavender pearls
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The world's
largest pearl weighs a whopping 14 pounds,
measures 9.5" x 5.5" x 25 around
(circumference), and has a 'nuggety" look to
it. And they say it's worth $42,000,000! It
was discovered in 1934 along the Philippine
Islands in a giant Tridacna (mollusk), and
is probably about 600 years old. It
originally belonged to the tribal chieftain
of the area where it was found, who believed
it was a sacred gift. He, in turn, gave it
as a gift to an archaeologist working in the
area who apparently cured the chieftain of
some ailment. The archaeologist reportedly
sold the pearl to its current owners in 1980
for $200,000. Legend has it that some 2,500
years ago the Chinese philosopher Lao-Tzu
ordered that a clam be implanted with three
amulets: one for Buddha, one for Confucius,
and one for himself - "three good friends."
He would have them reimplanted in
ever-larger mollusks as they grew, until
eventually only one remained (as there was
no longer room for more than one). The
legend concludes that the remaining gigantic
pearl was lost to a typhoon during the Ming
Dynasty, and "rediscovered" in 1934 off the
shores of the Philippines.
Pearl
saying: If diamonds are a girl's best
friend, then pearls must be her favorite
sister. |

golden pearls
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Lore:
Pearls have been known
for centuries, and thus have a long and
varied list of "uses." These include cures
for eye ailments, heart trouble, fever,
bleeding, poisoning, and indigestion.
Because of pearls high calcium content, some
of these had actual clinical benefit (eg.
indigestion).
A pearl water tonic can be made to increase
vitality, relieve eye strain, and soothe
burning urination: place several small
pearls in water overnight and drink the
following day. This tonic is a natural
antacid and anti-inflammatory.
Pearls were once thought to be the tears of
the gods.
The ancient Chinese believed that pearls
were conceived in the brains of dragons. In
imperial China, the natural black pearl was
regarded as a symbol of wisdom. As such, it
was guarded between the teeth of a dragon,
which had to be slain before the pearl could
be taken.
Some Hindu writers have linked pearls with
clouds, elephants, snakes, wild boars, fish
and --only sometimes-- with oysters,
themselves. The Greeks and Romans thought
pearls were born in oysters as a result of a
drop of rain or dew having penetrated
between the layers. The Persians thought the
same, but they believed that if a pearl was
imperfect it was due to thunder in the sky.
A more colorful version says pearls are born
from the meeting of a rainbow with the
earth. |

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In the Orient, pearls are
sometimes associated with the tears of
angels, mermaids or mythical nymphs in
stories mixing pain and suffering with
bliss. A Ceylon legend tells how the tears
of Adam and Eve created a lake that gave
birth to pearls --white or pink pearls from
Eve's tears, and more precious and rare gray
and black pearls from Adam's tears. Why the
difference? Man knows better how to control
his emotions, according to the legend.
According to one Polynesian legend, Oro, the
Polynesian god of peace and fertility, came
down to earth on a rainbow to offer a
special type of pearl oyster to man. Another
says that Oro offered the pearl from an
oyster to the beautiful princess of Bora
Bora as a sign of his love.
One of the most romantic legends tells how
the moon bathes the ocean in its light to
attract the oysters to the surface so that
it may impregnate them with heavenly dew.
Polished by time, this drop of light holds
this heavenly radiance within its heart and
cloaks itself in a garment with blue, green,
pink and golden reflections that shine and
blend in harmony. |

seed pearl earrings
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Metaphysical:
Pearls are symbols of
purity and clarity.
Associated with the ministry, pearls bring
wisdom through experience; they quicken the
law of karma, and bring engagements and love
relationships.
Pearls are said to keep children safe. They
are symbols of innocence; therefore, they
are talismans for the innocent.
Pearls help to attune the chakras. Since it
is a soft white, it helps bring soft,
healing energy during meditation.
Pearls, like mother of pearl, are associated
with the moon and water. This makes them
very feminine in nature, and conducive to
connecting with the goddess.
There is some debate as to whether pearls
should be used in magic. Since the oyster
must be killed to harvest the pearl, some
believe that there is heavy debt incurred in
using or wearing them. This, as with
anything else, is up to each of us
individually. I suspect that each situation
is different, so pearls can be used
positively in some types of magic. |
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Teresa's Rock of the Week, formerly Gail's Rock of the Week |
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