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  About Beading
Beading, Sizes, Wire & Cord,
Type & Finish, Special Beads

Various descriptions and charts
    Beading
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  A bead is a small, decorative object that is pierced for threading or stringing. Beads range in size from under a millimeter to over a centimeter or sometimes several centimeters in diameter. Glass, plastic, and stone are probably the most common materials, but beads are also made from bone, horn, ivory, metal, shell, pearl, coral, gemstones, polymer clay, metal clay, resin, synthetic minerals, wood, ceramic, fiber, paper, and seeds. Beads can be woven together with specialized thread, strung onto thread or wire, or adhered to a surface (e.g. fabric, clay).  Generally, beadwork can be defined as a way to create an item for the purpose of embellishment.
BASIC STITCHES
  Peyote Stitch (Also Known As: Gourd Stitch, 2-Drop, Graph Stitch) -  The name itself is based in Native American beading as the NA used a similar stitch (called Comanche Stitch) to create items used in worship in the Native American Church.  Peyote Stitch is used to make a "fabric" of beads by weaving them together in hand (no loom is used) in an offset row method. When completed, no thread shows between the bead or row, thus creating an erstwhile "fabric" of beads. Thread is visible along the edge of the work, however. The bead holes are lined up end-to-end in this stitch. Peyote Stitch can be worked with two beads at a time in each stitch, This is called "Two Drop Peyote Stitch."
  Brick stitch - The bead holes are lined up end-up
WHAT IS A DELICA BEAD?
Delica beads are cylindrical in shape and have very thin walls, as opposed to the rounder, thick-walled seed bead. They line up perfectly in loom and in off-loom stitches such as Brick or Peyote, with the thin walls and large holes allowing for multiple thread passes through each bead. Delicas give curved stitches such as a Spiral or Rosette a more angular shape and lend good definition to Herringbone weave projects.
WHAT IS A NOODLE?  Noodles are usually metal,  cylindrical in shape, with a gentle curve.  Commonly used to 'shape' a necklace
Want more information?  Here's a nifty site for everyone:  www.beadwork.about.com
 
    Sizes
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SEED BEAD SIZING
        Aught Size       mm dia    beads/inch
    6/0                3.3            10
    8/0                2.5            13
    9/0                2.2            15
  10/0                2.0            16
  11/0                1.8            20
  13/0                1.5            27
  14/0                1.4            24
  15/0                1.3            25
  delica              1.8            20

SEED BEAD SIZING - Seed beads are sized in aughts, which are different than millimeters.  The larger the number, the smaller the bead (20 is small, 3 is large).

REGULAR BEAD SIZING
  Size   Per Inch     7"     16"     24"     32"     36"
  3mm     8.25      57     132    200    265    288
  4mm     6.25      43     100    150    200    225
  5mm     5.00      35       82    124    160    180
  6mm     4.25      28       67    100    132    153
  7mm     3.50      24       57      85    114    126
  8mm     3.25      22       50      75    100    112
 10mm    2.50      18       40      60      80      90
 12mm    2.00      15       33      50      66      72
 14mm    1.75      13       29      43      56      63
 16mm    1.50      11       25      38      50      54
 18mm    1.25      10       23      34      45      50
 20mm    1.20        8       20      29      38      43
 
    Wire & Cord
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WIRE SIZING
   B&S Gauge     Decimal     Millimeter
     12            .0811        2.06
     14            .0630        1.60
     16            .0512        1.30
     18            .0394        1.00
     20            .0323          .82
     22            .0252          .64
     24            .0197          .50
     26            .0157          .40
     28            .0118          .30
26g - extra fine - for very small and delicate projects
24g - fine - for pearls & most gemstones - easy to work with
22g - medium - for glass beads, fits some pearls and gemstones
20g - medium heavy - great for earwires, clasps or larger beads
18g - heavy - often good for chainmaille or a heavier look
16g - heavy - often used as a base to wrap finer wires around
14g - heavy - often used as a base to wrap finer wire around
12g - very heavy - hard to work with, good for rings and buckles

The most commonly used sizes for wire wrapping are 20g to 24g.
THREAD, CORD AND WIRE - Using light colors against a dark bead will lighten that bead color... Dark color cord will darken a light bead. Example: White cord with Garnet bead will add to the luminosity of the bead.

Silk Bead Cord - is used for beads with smaller holes such as freshwater pearls and beads under 5mm. You can add a
      designer look by placing knots on either side of the pearl. Wide spectrum of colors.

Nylon Bead Cord - is used as an all purpose bead cord. You can use Beeswax to coat the cord to keep it from fraying and
      tangling when it is repeatedly threaded through metal beads with sharp edges. Wide spectrum of colors.

Tiger Tail - is a commonly used stringing material, and does not require a needle.
Beadalon - Beadalon wire remains soft and pliable, even when using the smaller beads. Beadalon is a multi-strand braided
      stainless steel wire with a nylon coating.

C-Thru Translucent Cord - is perfect for stringing Austrian Crystals, or any light colored bead when you don't want the
      cord to be visible.
Stretch Magic - is a flexible clear elastic cord. It is often used for slip-on crystal bracelets, and is a beader's favorite as it
      only requires a knot to finish.

Memory Wire - is a pre-coiled stainless steel wire that retains it shape. Very popular for wine charm markers and
      bracelets.
Rattail - is a round, satin-like cord, often used to show off one large pendant or centerpiece.
Leather Cord - is always a popular stringing material as there is no finishing required. Simply add a pendant or
      centerpiece, tie a bow and go.
 
    Types & Finish
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IRIDESCENT - Producing a display of lustrous, rainbow like colors
LINED- color lined, gold lined. gilt lined (fake gold or silver), silver lined, inside color - All pertain to the needle hole
         treatment, these treatments may slowly wear off from the thread movement.

LUSTER - Soft reflected light; sheen
MATTE - not glossy
METALLIC - imitate metals reflectivity
OPAL - iridescence
OPAQUE - difficult to see through
PAINTED or DYED - wood treatments & some reference dyed with certain glass beads
SATIN - a glossy, satin-like surface
SILKY - has a smooth, silk-like surface
TORTOISE SHELL - fake tortoiseshell, real has been outlawed - tones of brown, amber & black
TRANSLUCENT - allow light to pass through them only diffusely: they cannot be seen through.
TRANSPARENT - allowing light to pass through
WHITEHEARTS - old process, rare, white glass lined - rich colors
 
PLATING - STANDARDS & ABBREVIATIONS
SC - Silver Color Metal
GC - Gold Color Metal
SP - Silver Plated Finish - over a base metal for a Sterling Silver appearance.
GP - Gold Plated Finish - over a base metal for a 14K Gold appearance.
SS - Sterling Silver - .925 actual silver content.
GF - Gold Filled - a layer of 12K or 14K Gold, milled to a base metal for a long lasting gold appearance.
14K - .585 actual gold content.
18K - .750 actual gold content.
 
    Special Beads
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CHEVRON BEADS are special glass beads, originally made for the slave trade in Africa by glassmakers in Italy. They are composed of many consecutive layers of colored glass. The initial core is formed in a star-shaped mold, and can have anywhere between five and fifteen points. The next layer of glass conforms to that star shape. Several layers of glass can be applied, either star-shaped or smooth. After all layers have been applied, the glass is drawn out to the desired thickness and when cooled, cut into short segments showing the resulting star pattern at their ends. The ends can be ground to display the chevron pattern. Chevron beads are traditionally composed of red, blue, and white layers, but modern chevrons can be found in any color combination.
CLOISONNÉ BEADS - First, the artist forms metal (such as copper, bronze, or silver) into the shape of the finished object.  Cloisonné wire, which is pure silver wire usually about .010 x .040 inches in cross section, is bent into shapes that define the colored areas. The bends are all done at right angles, so that wire does not curve up. This done with small pliers, tweezers, and custom made jigs. The cloisonné wire pattern may consist of several intricately constructed wire patterns that fit together into a larger design. Solder can be used to join the wires, but it causes the enamel to discolor and form bubbles later on. Instead the base metal is fired with a thin layer of clear enamel. The cloisonné wire is glued to the enamel surface with gum Tragacanth. When the gum Tragacanth has dried the piece is fired again to fuse the cloisonné wire to the clear enamel. The gum Tragacanth burns off leaving no residue.  Then the crushed glass powder (frit) is added.  After the frit has dried, firing in an oven melts it onto the metal. Several repetitions of the process may ensue to build up the coatings to the height of the partitions. Various colors and transparencies may be used in combination within a single partition to obtain the desired artistic effect.  The exposed metal is electroplated with a thin film of gold to prevent corrosion and to give a pleasing appearance.
DICHROIC GLASS BEADS - used to produce high-end art beads. Dichroic glass has a thin film of metal fused to the surface of the glass, resulting in a surface that has a metallic sheen that changes between two colors when viewed at different angles. Beads can be pressed, or made with traditional lampworking techniques. The metal coating used was originally developed by NASA for the space program.
ETHNIC BEADS - Other beads considered trade beads are those made in West Africa, by and for Africans, such as Mauritanian Kiffa beads, and Ghanaian and Nigerian powder glass beads . Other ethnic beads include Tibetan Dzi beads and African-made brass beads. Rudraksha beads are seeds that are customary in India for making Buddhist and Hindu rosaries (malas). Magatama are traditional Japanese beads, and cinnabar was often used for beads in China.
FAUX NATURAL BEADS - Often beads are made to look like a more expensive original material, especially in the case of fake pearls, tortoise shell and simulated rocks, minerals, and gemstones. Precious metals and ivory are also imitated.  
Tagua nuts from South American are used as an ivory substitute since the natural ivory trade has been restricted worldwide.
FIRE-POLISHED BEADS are faceted glass beads made in the Czech Republic. They are faceted by machine and then drawn through ovens to make the surfaces molten, and thus shiny when the beads cool. This method of "polishing" is faster and cheaper than buffing and results in a reasonably attractive bead, though generally less perfect than buffed beads. Czech fire-polish beads are made in an area called Jablonec nad Nisou. Production of glass beads in the area dates back to the 14th century, though production was depressed under communist rule. They commonly come in sizes from 3 millimetres (0.12 in) to 22 millimetres (0.87 in)
FUSED GLASS BEADS - Fusing methods involve stacking, or layering thin sheets of glass, often using different colors to create patterns or simple images. The stack is then placed inside the kiln (which is almost always electric, but can be heated by gas or wood) and then heated through a series of ramps (rapid heating cycles) and soaks (holding the temperature at a specific point) until the separate pieces begin to bond together. The longer the kiln is held at the maximum temperature the more thoroughly the stack will fuse, eventually softening and rounding the edges of the original shape. Once the desired effect has been achieved at the maximum desired temperature, the kiln temperature will be brought down to avoid devitrification. It is then allowed to cool slowly over a specified time, soaking at specified temperature ranges which are essential to the annealing process. This prevents uneven cooling and breakage and produces a strong finished product.
LAMPWORK BEADS are made by using a torch to heat a rod of glass and spinning the resulting thread around a metal rod covered in bead release. When the base bead has been formed, other colors of glass can be added to the surface to create many designs.
LEAD CRYSTAL BEADS (also known as machine cut crystal) are cut crystal beads made with hi-tech precise machinery. Thanks to this state of the art machine cut processing the crystal items achieve outstanding geometry and excellent optical parameters. Many lead crystal beads are enhanced with surface coatings. Aurora Borealis, or AB, is a very common surface coating that diffuses light into a rainbow. Other common surface coatings are vitrail, moonlight, dorado, satin, star shine, heliotrope.
    Swarovski along with Preciosa branded crystal beads are prized by jewelers and hobbyists. They are a high-lead content crystal although today production of lead-free crystal is common. Lead crystals have an incredible sparkle and clarity, and are often multi-faceted to resemble gemstones. Styles and colors go in and out of production, so vintage cuts and colors are often prized with a similarly associated price tag. Swarovski along with Preciosa bicones are the most popular crystal beads in sizes 4 mm and 6 mm. Other Czech companies such as PAS Jablonec make similar styles of crystal beads.
MILLEFIORI BEADS - The millefiori technique involves the production of glass canes or rods, known as murrine, with multicolored patterns which are viewable only from the cut ends of the cane. Millefiori beads are made of plain wound glass bead cores and thin slices of cut cane (murrine) which are being pressed into the bead surface, forming mosaic-like patterns, while the glass is still hot. Another name for Millefiori bead is mosaic bead.
PRESSED GLASS BEADS are formed by pressing the hot glass into mold to give the bead its shape. Often pressed beads are made using machines that stamp the shape from the molten glass. The shapes can have holes punched in virtually any direction. The Czech Republic is the primary producer of pressed beads, although India and China also produce significant amounts.
SEED BEADS are uniformly shaped spheroidal or tube shaped beads ranging in size from under a millimetre to several millimetres. "Seed Bead" is a generic term for any small bead. Usually rounded in shape, seed beads are most commonly used for loom and off-loom bead weaving.
TRADE BEADS OR SLAVE BEADS are various types of beads made in Europe specifically to be used in the slave trade and other trading in Africa. Chevron beads are a specific, historically important type of trade bead.
 
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