WHAT
IS CRYSTAL ?
Here’s here all you want to know about: “The History of Glass Making”, “What’s Lead Crystal?”, “Some Common Glass & Crystal Making Techniques”, “Where’s Crystal in Feng Shui”, Aura & “Aura Imaging” combined with “The Healing Side of Crystal”
Please sit back, scroll down and enjoy this journey.........
No
one knows exactly when or where glass was first made. Glass appears to have been
produced as far back as the second millennium BC in Mesopotamia. Glass was a lot
less common back then than it is today.
The
art of glass making eventually reached Egypt. The Egyptians used a method called
core-forming. A shaped core was made of clay and dung, then molten glass was
wrapped around it and shaped by rolling it on a smooth surface.
It
was very much later, around the end of the 1st century BC, that a new method,
glass blowing would revolutionize glass production. This art was probably
discovered along the Eastern Mediterranean coast, probably in Syria. By blowing
through a hollow tube, the experienced glassblower can quickly produce intricate
and symmetrical shapes out of the "gather" of molten glass at the end
of his tube (rod). Alternatively, he can blow the molten glass into a mould.
The
glassblowing innovation, along with the backing of the powerful Roman Empire,
made glass products more accessible to the common people. As the size of the
Roman Empire increased, the art of glass making spread to many countries.
A
flourishing glass industry did not develop in Europe until the end of the 13th
Century, when Venice became a major glass making center. They may have picked up
their glass making techniques through their contacts with the near East
countries during the Crusades. The Venetian provided the link between the
ancient & modern glass making arts. Venetian glass was noted for its
brilliance & for its light, imaginative forms.
So
by the 15th Century, Venice had become the major producer of glassware in
Europe. So highly esteemed were the Venetian glass makers, that they were
forbidden to leave the Island of Murano, lest their precious trade secrets be
imparted to others.
However,
it was to be another 2 centuries later that in 1676, an Englishman named George
Ravenscroft; searching for a way to improve the luster and clarity of his
glassware found that by adding lead oxide to his molten mixture he could not
only improve the clarity (crystal clear) of the glass but dramatically increase
the weight, the index of refraction and the ability to cut the material without
fracturing. This new glass became known as lead crystal and very quickly became
the perfect medium for glass cutters and engravers. Over the past 300 years,
their skills, proudly passed from generation to generation, have given lead
crystal it's world famous reputation.
The
presence of lead in crystal softens the glass and makes it more accessible for
cutting and engraving. Lead increases the weight of the glass and causes the
glass to diffract light.. Lead crystal is made from a mixture of sand, potash
(potassium carbonate) and lead oxide. The components are heated to at least
2,400 degrees Celsius until molten and red-orange in color. The temperature is
then slowly reduced to the "working" temperature. Glass can contain up
to 40% lead, if maximum hardness is desired. On the other hand, crystal can
contain less than 24% lead if it has a high proportion of barium oxide, which
ensures high quality light diffraction.
The main difference between glass and crystal is the lead
content. Glass is composed of sodium and potassium. Crystal is also composed of
sodium, but in addition, it contains silicone, and has a lead content of 10-24%.
The lead makes the glass heavier and, most importantly, the lead changes the
refraction index of the item, which makes it appear brighter and cleaner.
Because the refraction index is higher and lead crystal is not as brittle as
standard glass, it is possible to make deeper and more complicated cuts in
crystal.
To
deserve the name “lead crystal” the glass must meet 3 criteria defined by
rigorous rates and percentages . Below these measures, one can only talk about
“crystal glass” or “crystalline”.
|
|
Metallic
oxides |
Density |
Refractory
index |
|
Full
lead crystal 30% |
PbO
> 30% |
>
3.00 |
>
1.545 |
|
Lead
crystal 24% |
PbO
> 24% |
>
2.90 |
>
1.545 |
|
Crystal
glass, crystalline |
ZnO,
BaO |
>
2.45 |
>
1.520 |
|
Crystal
glass, crystalline |
BaO,
PbO |
>
2.40 |
|
Lead
crystal is a material rich in symbols :
Symbol of life, lead crystal is a reminder of the four elements, ultimate components of life : earth, fire, wind and water.
Symbol
of purity, glass has often been used as a representation of innocence and
virginity. Many Italian Renaissance paintings show virgins depicted next to
glass objects through which light passes without altering them.
Symbol
of greatness , lead crystal, considered as a precious material, has often been
reserved for the elite. Beyond its symbolic meaning, lead crystal has won
acclaim with its sparkle its intensity , its transparency and its unequalled
musicality.
The
pieces are dipped in wax, and then the wax is scraped away in a particular
pattern. After this is done, the glass is dipped in a mild acid. Where the wax
has been scraped away, the acid burns a pattern in the glass.
Parts
of the piece that are not to be sandblasted are covered, and then a small nozzle
is used to shoot a fine stream of silica at the piece. This technique is often
used in combination with cutting.
To
make colored glass, different pigments are added to the glass-mass. For example,
to produce green, copper oxide is added to the mixture. To produce blue, cobalt
oxide is added. As well, it is possible to produce black, brown, red, orange,
yellow and purple glass, in a myriad of shades.
Although
it is possible to make some cuts in sodium potassium glass, lead crystal is the
material of choice for this technique. Because of the higher refraction index of
crystal, cuts in the crystal both add to the interest and appearance of the
piece, as well as making it appear very clean and bright.
Machine
engraving is used on both hand-made and automatic production pieces. This
technique is used to ensure uniformity from piece to piece.
Lead
crystal, which is mouth blown in the traditional method, may from time to time
have a few minor bubbles contained within the piece.
This is generally accepted as a by-product of the traditional process and
does not detract from the piece. On
occasion, small, barely perceivable lines may be detected within a piece of
crystal. These represent slight
variations in the density of the molten crystal, which remain after the crystal
has cooled. These lines are called
cords and are also considered a by-product of the traditional process.
It
should be noted that each piece of true hand cut lead crystal is a unique
product of the individual artisan or artisans who have produced it.
For example within a set of stemware of the same pattern there may be
very slight variations in pattern size and spacing of the elements.
This only serves to embellish the charm and appreciation of such
artisanship and is by no means considered a detriment.
Absolute product consistency is only achieved by fully mechanized
production, not by a craftsperson.
The
underlying principle of Feng Shui , which literally means Wind and Water, is to
live in harmony with your environment. It has been around in the western world
for over 3000 years and is often referred to as the Chinese Art of Placement. It
affects every aspect of life and the way it is applied can be either influential
or detrimental to the way you live.
By
applying the principles of Feng Shui to your life you can open up a whole new
world - a new way of looking at and listening to your environment. You can start
getting your environment to work for you. By making positive Feng Shui changes
you can improve every aspect of your life, including your HEALTH, WEALTH and
HAPPINESS.
In
the West, Feng Shui is not a science as its principles cannot yet be proven by
any scientific method. It is not a religion, although some of its advocates may
consider it part of their religious rituals. It is not necessary to follow any
religion to understand or practice Feng Shui. It is not just a philosophy as it
encompasses many practical tools and techniques. It is not a belief system:
asking someone if they believe in Feng Shui is like asking them if they believe
in the weather. Feng Shui is not a question of faith but a fact of life.
Light
is a powerful way of activating the chi energy in your environment. Crystals
encourage and disperse natural light and are one of the most popular Feng Shui
cures. Hang a beautiful crystal in the window and you will experience the beauty
of rainbows filling the room with Sheng Chi (positive energy). Keep a crystal
close to you, to maintain that powerful Yang energy so necessary for your well
being.
During
an occasion at one of our trade shows in Orlando, we have learnt a lot from our
dear friend Guy, the leader of AURACLE Team – a company
specializing in “Aura Imaging”. He generously shared his study and knowledge
of this process with us. And we want to share it with you.
The
Aura
is a colorful field of electromagnetic energy that surrounds your body. It is no
longer a question of whether we have an aura, since science has now proven its
existence. There are many ways for to “see” your aura through our Living
Aura Imaging technology.
Living
Aura Imaging is an interactive multimedia biofeedback system that uses cutting
edge technology which allows you to view your aura in interactive real time on
the computer monitor. This system is ideal for showing changes in your auric
field as it responds to your thoughts, feelings, healing modalities,
health products and other stimuli. Many people do follow up sessions to see how
they are progressing.
Biofeedback
probes on the hand plate pick up your body’s energy from your hand and
communicate that information back to the computer. The monitor then displays
this information as a colorful energy field which represents your actual aura.
Knowing more about your auric colors helps you to relate better to others and
capitalize on your strengths.
What
Does It Mean To You?
The
Colors of Your Aura
Relates
to having opportunities for better communication with your inner self,
inspirational, kindness. A person with this color can be trusting of the future
and inspirational to others.
Violet
is the magical, mystical color. Great opportunities for spiritual searching and
ultimately deeper connection with Spirit. Abilities of charm, eroticism and
enchantment are enhanced.
White
in our aura gives us the ability to see things in a holistic way. A time of
great spiritual motivation and faith.
Unsettling,
distracting, materialistic, negating spirituality.
Dark,
depressing thoughts, unclear intentions, presence of dark side of personality.
Red
relates to the base chakra. This is the color of the physical. Red is passion,
vitality, enthusiasm, sex, strength of will and beginnings. Without red, nothing
would get started.
Orange
is the color of ambition and drive, self-expression, original and lateral
thought. Artistic and creative skills can be finely tuned by wearing
Every
shade of yellow indicates a function of our intellect, talent for organization,
discipline, personality and ego.
Green
is the balance of ying and yang; healing, nurturing, compassion, love, growth,
prosperity,
and
change.
Blue
is the color of truth, loyalty, calmness, peace, sensitivity, commitment and
love in friendship. Listening and communication are enhanced.
Here’s
our friend Guy in Aura Imaging Studio Before and After he
holds one of our Crystal Diamonds:

The
size and shape of your aura indicates the energy surrounding you. An aura that
is close to
the
head indicates shyness or introversion. An aura that extends upward and outward
indicates
powerful
energy, activity and extroversion. An aura that is even on all sides is a person
who is well balanced and/or consistent. An aura that has gaps or holes in it
usually symbolizes a loss or a will to let go of something significant. A band
of different color on the edge of the aura signifies the person’s strongest
desires, goals or tendencies at that time.
Right
Side (Masculine Energy) is the color energy you are expressing to others each
and every day. It represents your recent past or the energy that is leaving you.
Center
(and Above) is the color energy that best shows you what you are experiencing
right
now
in yourself and your life.
Left
Side (Feminine Energy) is the color energy that shows you what you are
attracting in the near future into your life. The time period could be from a
few hours to a few months.
"All
pictures and the text work are the property of Crystal Florida, Inc and may not
be reproduced in any form without prior written permission of the
publishers..!"