A substance which imparts luster to a surface, as graphite and some of the glazes.
A fabric of wool and cotton with a lustrous surface, -- used for women's dresses.
the appearance of a mineral due to the amount and quality of light reflected by it's surfaces. e.g.. vitreous.
is the appearance of a pearl's surface judged by its brilliance and ability to reflect light. Also called "sheen" or "shimmer". See Orient.
The manner in which fibres reflects light. A characteristic of most strong wools and mohair.
A film-like coating of metal or metallic oxide applied to the already-fired glazed surface, and fused onto it in a second firing at the low temperature of 600-800 ÂșC.
A metallic surface coating. Dating as far back as the 10th century in Persia, lustres found new popularity in the 19th century as copper, silver, and pink lustres decorated everyday earthenwares. Later developments produced wondrous effects in the Arts and Crafts movement, in particular, the so-called Fairyland Lustre of Daisy Maikig-Jones for Wedgwood in the early 20th century.
The bright new tone coins have when they have just been struck resulting from the centrifugal flow of metal caused by striking. Over time through handling and wear coins usually loose this lustre. Once it's lost it cannot be replaced and coins with some or all original mint lustre will usually sell for more.
A type of colouring decoration achieved by painting metallic pigment on to a fired glaze and refiring in a reducing atmosphere which gives an iridescent effect. (Freestone, ch.16; box, p.112).
a surface coating for ceramics or porcelain
a quality that outshines the usual
the visual property of something that shines with reflected light
Light reflection from the carpet pile.
The lustre of a stone is its sparkle or sheen - the way it reflects light. The lustre depends on the nature of the stone's surface reflectivity. The lustre of a pearl is derived from its nacre
The glossy mint bloom on the surface of an Uncirculated coin. Although normally brilliant, with time luster may become dull, frosty, spotted or discolored. Coin lustre is affected by wear, handling, polishing of dies or planchets, exposure to Chemicals, humidity and temperature
Lustre is the degree to which a diamond or stone reflects light.
The sheen or particular colour or appearance seen on a new or as new coin as a result of it being struck during the minting process. Often referred to as "mint lustre".
Colorless transparent coatings that give a very high gloss to the underlying surface.
Quality of light reflected from the surface of a gemstone, including pearls.
the technique of applying an iridescent decoration to ceramics by depositing a metallic film onto the glaze. Oxides of silver, copper or gold are dissolved in acid, combined with an oily medium and painted onto the ware. The object is then fired in a reduction (oxygen-starved) kiln, causing a metallic film to adhere to the ceramic surface that becomes iridescent when burnished.
Ware Refers to pottery with a surface of seemingly changing colours, rather like "mother of pearl". The effect is achieved using silver or copper metallic pigments.
The appearance/shininess of a pearl's surface judged by its ability to reflect light. One of the most important factors in judging and pricing pearls.
look appearance of surface Copper, Barite, Jade
A term referring to the combination of surface brilliance and deep glow of a pearl, the lustre of a good-quality pearl should be bright enough for you to see your reflection in it.
The brightness of a coin which results from the way in which it reflects light. Many different types of lustre exist, and one of the trickiest parts of the grading process is determining whether the lustre of a coin is artificial (See "whizzed"), natural as made, or diminished through wear, cleaning, friction, temperature, humidity, etc. (Alternate spelling "Luster.")
Gloss or shine of a finished surface. Masking Tape A pressure sensitive paper tape which can be used to temporarily cover areas not to be painted and can be easily removed. Matt Surface created which is substantially free of any gloss or sheen, but has a very low sheen when viewed at an angle. Metallics Paints that include metal flakes. Micron One thousandth of a millimetre. Standard unit in measuring film thickness. Mildew A discolouration on paints caused by fungus growth. Mineral Spirits Petroleum solvent for paint thinning and clean up. Mist Coat A very thin coat applied by spraying, often diluted with an appropriate solvent. Mobility The degree of ease with which a material flows. Mudcracking Irregular surface cracks caused by shrinkage during drying, often as a result of excessive coating thickness.
The sheen or bloom on the surface of an uncirculated coin resulting from the centrifugal flow of metal caused by striking.
A quality evaluation category used to describe the combination of surface shine (reflectivity) and inner light refraction (depth). Lustre is perhaps the most important of all quality factors and is expressed in terms of high, medium and low lustre. The lustre of a high quality pearl should be bright and capable of sharply reflecting objects near its surface. A dull or chalky lustre indicates poor quality.
A high-gloss finish with iridescence
Metallic oxide film applied to pots after glazing and firing to produce pearly finish after a further firing in a reducing atmosphere.
Luster refers to the combination of surface shine and depth of inner light refraction in a pearl. Lustre is one of the main factors of pearl quality.
Alternate form of luster.
Lustre (American English: luster) is a description of the way light interacts with the surface of a crystal, rock, or mineral. For example, a diamond is said to have an adamantine lustre and pyrite is said to have a metallic lustre.