Luster Luster is how the light reflects off of a mineral. If the mineral has a metallic tint and is completely opaque (even around the edges), then it has a metallic luster. Examples include:
Copper
Pyrite
Galena ...
LUSTER BRILLIANCE
These frequently used terms to describe the visual appearance of the interaction between light and a gem are often confused and misused, sometimes even by experienced industry professionals.
Luster (Lustre)
A pearl's "luster" is one of its most important physical attributes, and the highest determining factor in grading and valuation after its regional origin.
Pearl Luster
When a mollusk senses an irritant within its body it secretes layers of semi-opaque calcium carbonate called nacre (NAY-ker) to coat the irritant. This substance builds up over time and becomes a pearl.
LUSTER:
Refers to the brightness a piece of jewelry reflects.
See also: Pearl Nacre
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Brilliance and luster:
Diamond's true adamantine luster comes from its excellent transparency and high refractive index of 2.418. Its brilliance is penetrating to the extent that it triggers our senses to produce diverse feelings.
Luster:
The luster or brilliance of transparent gems is caused by light reflecting from the stone's surface. The smoother and more highly polished the surface is, the greater the luster will be.
Luster : In layman's words luster refers to the shine and gleam while technically it is the quality of the light reflections from the pearl's surface.
Luster
The luster of a gemstone is comprised of the quantity and quality of the light reflected from its surface. There is an inherent, potential luster possible for each species and variety of gemstone.
Luster
Luster is the amount of light a pearl reflects... both from its surface glow and its inner light, a deep mirror-like reflection. The better the nacre quality of the pearl, the more superior its luster.
Luster: The intensity of light reflected from the surface of the pearl. High luster pearls reflect light well and show mirror-like reflections. Low luster pearls appear milky or chalky.
Luster
Pearl luster refers to its light-reflecting ability, typically described as brilliance or glow. Good quality pearls shine brightly, and sharply reflect light.
Luster
A stone's luster is its glow or sheen, the result of the way it reflects light. Luster is dependent on both the stone's surface (polish) and the reflective index of the Mineral.
Luster
Luster is a measure of the glow and shininess of a pearl. It's the result of light being both refracted down through the layers of nacre at the same time it is reflecting back from them. High luster is desirable in a pearl.
Luster
Luster refers to the sparkle of a stone due to light reflecting off the gemstone.
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Luster and orient. Luster is the sharpness and intensity of reflections on the pearl's surface, and orient is the iridescent colors one sees within the pearl. The higher the luster and orient, the more valuable the pearl.
Luster: A reference to the brightness of an object that shines with reflected light rather than producing its own.
Lustrous: A reference to the brightness of an object that shines with reflected light rather than producing its own.
Luster " Lustre is the inner brilliance that deepens and grows as the number of pearl layers increase. This brilliance is the single most important factor in selecting pearls! ...
Luster
The outward appearance of a gem or organic material. Luster is most important especially when evaluating the quality of pearl.
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Luster: A combination of the pearl's exterior shine and glow from within. Created by light reflected from tiny crystals in the nacre.
Luster:
Refers to the brightness a piece of jewelry.
Matte Finish:
A textured finish produced by brushing the metal surface to produce tiny parallel lines.
Luster: The hue and depth of reflection from pearls, opals, or other opaque stones.
Luster The outward appearance of a gem or organic material. The quantity and quality of light that is reflected from the surface of a stone. Luster is important especially when evaluating the quality of pearls.
luster
The sheen of a gemstone or pearl, or the nature and intensity of the light it reflects ...
Luster - The quality of reflected and refracted light from the surface of a gemstone or pearl.
Make - Trade term referring to the proportions, symmetry, and polish of a gemstone.
Luster - an iridescent decorative surface appearance
Matte Finish - flat glaze finish without gloss.
Metal Serveware - Lenox serving pieces made from alternative metal.
Luster - The quality and quantity of light reflected by a stone's surface. Luster can also refer to the unique glow that emanates from a pearl as a result of the microscopic crystals in the nacre of the pearl.
Luster: The quality of light reflected from the diamond.
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Make: A trade term that refers to the proportions and finish of a polished diamond, as in good make or poor make.
Luster
Refers to the way light reacts with a certain mineral in reference to whether or not the stone is dull (reflecting little white light) or brilliant (reflecting copious amounts of white light).
Luster
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Minerals may be categorized according to whether they are opaque or transparent. A thin section of an opaque mineral such as a metal will not transmit light, whereas a thin section of a transparent mineral will.
Mineral Lusters
Gallery of this key attribute of minerals: how they reflect light.
Mineral Streak
About this simple but effective field technique for mineral identification.
Luster - A combination of surface brilliance and a deep glow that seems to emanate from within the heart of a pearl.
Luster, Norway, a municipality in Norway
Lustre (mineralogy), a description of the way light interacts with the surface of a crystal, rock, or mineral
Luster, a description of the way light interacts with the surface of a molluscan pearl ...
Luster is the glow of the pearl and its radiance as perceived by the human eye it is remains an important indicator in evaluating cultured pearl quality, separating the inferior pearl from the superior and the ordinary from the extraordinary.
Luster (lustre)
The quantity and quality of light reflection from the surface of the stone. The amount of luster is influence by the polish of the surface, harder stones can be better polished. Like Diamond or Sapphire.
Luster
Of all in cultured pearls, luster is perhaps the most important. Fine luster produces an almost mirror-like reflection on the surface of pearls, when looked at in normal light. You should avoid cultured pearls that look dull and chalky.
Luster - Influenced by transparency and thickness of the nacre, and the bead nucleus used. Pearls with nacre too thin or opaque tend to look chalky rather than iridescent. Nacre thickness of 0.5 mm or greater is needed for a good luster.
Luster: Vitreous to silky
Transparency: Transparent to translucent
Crystal System: Triclinic
Fracture: Splintery due to the cleavage
Streak: White.
Luster - The deep inner glow that makes pearls uniquely beautiful. Luster is created by tiny crystals of nacre built up over the irritant. Natural pearls tend to have thicker nacre than cultured pearls, hence deeper luster.
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luster, produced by the reflection of light on the surface of the facets.
Internal brilliance:
Refraction and total reflection of light on the pavilion facets.
Luster: Considered the radiance or depth of inner light refraction of a pearl and determined by the quality of the nacre coating. Luster is created by tiny crystals of nacre built up over the irritant.
LUSTER The shine or finish on the surface of a gemstone. GIA describes luster in the following categories: ADAMANTINE - Diamond like. GREASY, METALLIC, RESINOUS, VITREOUS or WAXY.
Luster
Pearl's ability to reflect light. One factor to evaluate pearls based on their radiance. The higher the luster, the more valuable the pearls. High luster gives almost mirror-like reflections.
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LUSTER - The appearance of a surface in reflected light.
MAKE - Trade term referring to the proportions, symmetry, and polish of a gemstone.
MARQUISE - A gem shape that is elliptical but with pointed ends, similar to the shape of the boat.
Luster...A reflective property of mineral surfaces.
Magma...Molten silica containing volatile substances in solution, present beneath the surface in certain areas of the earth's crust.
Malleable...Can be flattened by pounding, as in metals.
Luster
The quality and amount of light that reflects from a diamond. An important attribute while purchasing diamonds, classified as high, medium and low.
Make ...
Luster - A frosty appearance on the surface of a coin.
Market Maker - A member company of the London Bullion Market Association who is prepared to 'make' a price to other wholesale bullion banks in order to ensure a steady supply of liquidity to the ...
Luster is the visual reflection of light from the pearl surface back to the observer's eye. Although a thick healthy nacre tends to produce a more lustrous pearl, this is not always the case.
Luster is the degree to which a diamond or gemstone reflects light.
Marquise
A gemstone shape pointed at both ends and oval shaped in the center.
Oily Luster. Certain stone, notably the peridot (or chrysolite) and the hessonite (or cinnamon stone), have an oily luster.
Luster and transparency. The way a mineral transmits or reflects light is a diagnostic property. The transparency may be either opaque, translucent, or transparent. This reflectance property is called luster.
Lustre, Luster
The lustre of a diamond is its highly reflective surface sheen due to its high refractive index combined with the highly polished surfaces.
The high luster and deep red color give vanadinite a nice appeal to mineral collectors.The uncommon lead vanadate mineral vanadinite is an ore of vanadium and a minor source of lead.
metallic luster, dark color usually charcoal gray or black, sometimes iridescent colors.
Hardness:
2.5 - 3.0 ...
Metallic luster with incredible fire of all colors.
Mystic Fire Topaz$ 139.99
Item #TPZ623
2.98 ct.
To dull the luster of a mineral by exposure to air or dirt. Tarnish is a form of corrosion or oxidation.
tumbaga
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adamantine luster Adamantine comes from the Greek word adamant meaning diamond. Adamantine luster means diamond-like luster. It is a property of certain gemstones, especially diamond, of very high reflectivity.
earthy luster Luster describing minerals that are microcrystalline or amorphous and have very poor reflective surfaces. ebb tide A tide that lowers the water surface of an ocean and moves the shoreline farther seaward.
Gold can lose its luster over time if repeatedly exposed to dust, moisture, perspiration and makeup. So make sure to clean your jewelry regularly.
tarnish
A dulled luster or finish.
tassel
An ornamental bundle of threads bound at one end and loosely hung.
 See also: Color, Stone, Jewel, Gemstone, Jewelry
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