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The relatively worthless rock or vein material in which valuable metals or minerals occur.
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A device for measuring the exact dimensions of a gemstone.
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The trigger which holds the notched gear at the top of a faceting head.
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A 60 notch wheel used for many kinds of facet cuts.
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A cut and faceted stone, often for jewelry use.
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Complete combination unit.
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Facet machine with electronic micro-stop.
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Rough mineral or rock which can be cut into gemstones.
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A mineral, synthetic, or organic stony material which has sufficient beauty and hardness (or toughness) to be used for decorations or adornment.
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An alloy of nickel, copper, and zinc.
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Covering a metal surface with "gild," a mixture of gold and mercury. Also covering with gold leaf.
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The outer edge of a faceted stone or the dividing line between the crown and pavilion.
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Safety goggles should be worn for such steps as melting metal, centrifugal casting, etc.
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A core metal such as nickel laminated between gold sheets. Must be stamped, for example 1/20 G.F. or 1/20 10K G.F.
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A thin (usually) gold covering on jewelry or other objects deposited by electroplating.
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For soldering gold jewelry -- available in low karat up to 18K, in clipped, strip, and wire form in yellow or shite.
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Acid bottles with test needles and touchstone for determining karat content.
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A tiny crystalline particle or a unit of weight which is one quarter of a metric carat.
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A metric weight -- 28.34 grams to an avoirdupois ounce.
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A set of metal weights from 500 milligrams to 100 grams, for weighing jewelry metals.
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Decorative and texturing metal process of solderless bonding of tiny beads of gold to the surface by heating.
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Steel tools for engraving designs or letters, available with ends of many shapes such as chisel, bevel, flat, lozenge, round, and square.
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A standard dop wax for cabochons.
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Silicon carbide or diamond wheels to grind gemstones into desired shapes.
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Loose grits, or grits in binders, are abrasives of various sizes, usually silicon carbide or diamond, used for lapidary work.
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A cement which is used to fill spaces between stones of mosaics.
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Used as an adhesive in the enameling process.
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A wide-domed ring with a flush set stone which continues the curve of the dome.
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A machine with six cab heads designed to make perfect cabochons consistently.
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Monday, September 2, 2013
Jewelry Glossary - G
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