Dichroic Glass combined with fused glass makes dichroic jewelry of the higest quality.

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Dichroic Glass Jewelry

Pontie       See Pontil.

Pontil       a long solid or hollow rod used to hold the glass jewelry bottle during the finishing process.

Pontil       An iron rod, also called a punty, to which is attached the partially shaped parison. A small dichroic glass blob of the gather is picked up by the tip of the pontil and the parison attached to this at the opposite end to that which is attached to the blow pipe which is then detached. Shaping continues by the use of various hand tools; handles, appliqués, etc. are put on, and the vessel readied for annealing. Removing of the pontil leaves a rough shear mark in the center of the base. Some firms, such as Tiffany, frequently leave the pontil mark in its rough state. Others, like Loetz, invariably polish them to a concave disc shape. The pontil mark was eliminated by some firms by either blowing the base into a mold, or by using a variation of the pontil such as a gadget which had pincers to grip the base rather than be attached to the center. GANTAD

Pontil scar       the scar left by the pontil on the completed glass bottle.

Pontil Scar       the characteristic mark in the center of a dichroic glass jewelry weight's base, where the weight was separated from the rod that had supported it during production.

Pony insulator       the smallest type of insulator.

Post       See Snap.

Post-bottom mold       a full-height mold with a post on the bottom fused glass plate.

Pot Furnace       A furnace that the dichroic fused glass jewelry sits inside a crucible which sits inside the fused glass furnace. If the Crucible breaks, it can be easily replaced.

Pot Furnace       A furnace using one or more crucibles (pots) for melting dichroic glass. In colonial American and equivalent European factories had six, eight and ten pots in the glass jewelry furnace holding hundreds of pounds. The dichroic glass pots were made and fired in the factory and replaced by removing a section of the hot furnace wall. Pot furnaces are used now in art studios and some factories and for melting small (10-20#) to large (150-250#) quantities of color. Pots are always batch mode: cullet or batch glass jewelry is added (usually in the evening) and must be melted before working can begin. Pots may be invested by casting insulating material or free standing in the furnace. (see also Tank ) Homemade with crucibles purchased. Furnaces

Potassium Carbonate       also known as potash, this is an alternative alkaline ingredient for making dichroic glass replacing soda. GANTAD

Powder       Concentrated glass jewelry color is available in powder form or can be ground by the dichroic glass jewelry worker. The glass jewelry powder can be placed on the marver or in a cup for pickup by rolling the very hot dichroic glass jewelry in it. The powder melts into the glass forming a very thin layer on the surface which may be gathered over for interior effects.

Powder box       Holds powder for wigs (and face powder? and ink dusting powder?) (body is paperweight) OGP P.42

Powder Cup - Powder Box       Colored powder is applied to hot dichroic glass jewelry by rolling the fused glass in a layer of the dichroic fused glass jewelry color. The layer may be on the marver or in a fused glass pie pan, but many artists like to use a brass or aluminum molded color cup to hold the powder (and move it out of the way) and shape the fused glass jewelry. One interesting alternative is to use the heavy metal scoops used for ice and other institutional food products; one artist used insulating castable to mold several hollows in which to set the scoops and allow them to be changed out. A powder box has ventilation to suck away stray powder (keep it out of the lungs) especially when color is shaken over the glass jewelry.

Pressed glass jewelry       When a hot gather of glass is placed in a (usually metal) mold and a matching metal shape is forced down inside, the result is pressed dichroic glass jewelry, a major innovation in tableware of the 19th century as it allowed much cheaper production of dichroic glass that looked like cut dichroic glass. Pressed dichroic glass bits have been added to blown pieces for centuries: small medalions, feet, handles, etc., but semi-automation and later full automation of the gobbing and pressing made for cheaper dichroic glass. Pressed glass is usually not thin and since the pressor must be removed, is normally an open flared top like a bowl. Pressed pieces may be used as the basis for further work, like adding handles, etc. Variations include open mold blown, where a piece is mostly flat and the bubble of glass jewelry is blown into a flat mold.

Pressed fused glass       Not really an object but a technique, almost anything made of thin fused glass jewelry has been made of pressed dichroic fused glass, which is marked by a smooth inner dichroic fused glass jewelry surface and sharp impressed outside decoration. Molten dichroic fused glass is pushed (pressed) into a mold by a matching inner core. Can be used as a technique. Pressed glass jewelry Techniques

Dichroic Jewelry Definitions 1 | Dichroic Definitions 2 | Dichroic Glass Definitions 3
Dichroic Jewelry Definitions 4 | Fused Glass Definitions 5 | Fused Glass Jewelry Definitions 6