Vitreous
From Wikipedia, the free encyclopedia.
Vitreous refers to a material in a glassy state. In such a state, the constituent atoms do not exhibit the long-range order that is characteristic of crystals.
Vitreous
The tem used to describe a gem that has a glassy luster.
Vulcanite
A hard, moldable dark brown or black plastic used for memorial pieces in the mid-Victorian period.
Vitreous
Vitreous refers to a material that is glass like. .
W
Watch
Watch is a piece of jewelry typically worn on the wrist and functions as a device to tell time.
Vitreous Vitreous luster occurs in minerals with predominant ionic bonding and resembles the reflective quality of broken glass. The refractive index of such minerals is 1.5 to 2.0.
Vitreous A technical term referring to the luster of a gemstone. Gemstones with a vitreous or glassy luster are by far the most common in the gems world.
VITREOUS. Glassy, as glassy lustre.
WASSIE. A large cleavage of a crystal split for cutting, as an octahedron divided into two pieces.
WAXY. A distinctive lustre, as of the turquoise.
Vitreous - Vitreous refers to a glass-like luster on a stone.
White Gold - The en vogue color of the younger generation, white gold uses silver-colored alloys (silver, zinc or nickel) to decrease the yellow tint of gold.
*Vitreous - literally, like glass, meaning the ceramic body is nonporous (won't absorb water). All fine china is vitrified because its ingredients include silica, which literally turns to glass when fired at high temperatures, giving it strength.
Luster: vitreous to resinous
Hardness: 5.5 - 6
Crystal structure: none, it is amorphous ...
Vitreous Luster. The other stones nearly all have what is called vitreous luster (literally, glass like), yet owing to difference of hardness, and consequent minute differences in fineness of surface finish, ...
vitreous
Vitreous means glass-like.
volcanic ash
Volcanic ash is a harsh abrasive type of ash (unlike ash from a wood fire) that is made up of small rock, mineral, and volcanic glass fragments (these fragments are less than 0.
Vitreous
Colours
Always contains any two colours viz. purple, violet, yellow ...
VITREOUS
Vitreous means glass-like.
VOGUE
Vogue was a costume jewelry compnay that was founded in 1936 by Harold Shapiro (father of the founder of the Les Bernard company), Jack Gilbert, and George Grant. Their jewelry was sold through I.
Vitreous means glass-like.
VINAIGRETTE
A vinaigrette is a tiny, decorative bottle or box that was often carried on a chatelaine. Smelling salts or aromatic vinegar was carried in the vinaigrette.
Vitreous: The luster seen in polished glass and in most transparent gemstones whose refractive indices fall within the middle range of values (e.g., emerald and tourmaline).
vitreous (glassy)
Diaphaneity
transparent, translucent, sub-translucent ...
vitreous
Specific Gravity
per Joel Arem: 2.66 to 2.70 per Cally Hall: 2.80 ...
Vitreous.. Glasslike in appearance or texture.
Vug...An open cavity in rocks, often lined with crystals.
Xenolith .. rock enclosed in magma.
VITREOUS ENAMEL - A fine ground power of various colored glass that when heated in the correct procedures will permanently adhere to metals to create decorative colors and patterns.
A vitreous glaze, which is applied to metal in the form of powdered glass usually applied with heat
Engraving
Cutting lines into metal which are either decorative or symbolic ...
Luster: Vitreous to silky
Transparency: Transparent to translucent
Crystal System: Triclinic
Fracture: Splintery due to the cleavage
Streak: White.
Diopside is vitreous or greasy from transparent to translucent. It is doubly refractive. The finer specimens fit for gem purposes. When it is cut brilliantly, it makes a very attractive stone and resembles green tourmaline.
Glass has a vitreous luster, may show mould marks, bubbles and swirls. It has a higher SG and is harder. It's streak is white as opposed to the brown of jet.
Gutta-Percha
A dark rubber from tropical trees, used from the mid 19th century.
ENAMEL - A vitreous glaze. In jewelry, it is usually fused glass that is heated to a base--most commonly to the surface of metal, glass or pottery.
Top ...
The mineral is vitreous and, apart from the fibrous/ acicular habits, it is also found in a massive form. The mineral is regularly found associated with massive barite or calcite.
Variety of colours. Vitreous luster. 6-7.
Zircon
Natural colour varies between colourless and green. 7.5. High refractive index making it a very beautiful gem stone.
pyrite or marcasite), resinous (like amber), pearly (with an iridescent reflectivity, like pearls or mica), pitchy (tarry minerals that are radioactive, like uraninite), silky (with a fibrous structure, like some tiger's eye or satin spar), vitreous ...
Tigereye is also vitreous (hard, unbendable and glasslike). With its strong chatoyance, the gemstone gets its name from its resemblance to the eye of a tiger.
Enameling: A decorative technique in which a vitreous pigment of metallic oxide is mixed with finely powdered glass is applied to the surface of a metal--normally bronze, copper, silver or gold.
glassy (luster) Synonym of vitreous luster. gneiss A coarse-grained, foliated metamorphic rock marked by bands of light-colored minerals such as quartz and feldspar that alternate with bands of dark-colored minerals.
The use of vitreous paste was confined to just a few glass factories from the turn of the 20th century as the process was problematic and the results could often be sub standard. Venini & Co. and MVM Cappellin & Co.
Noble corundum has a brilliant, vitreous luster, which, while not equal to that of the diamond, is superior to that exhibited by almost any other gem. Corundum is a heavy mineral, its specific gravity being four times that of water.
* vitreous (or hard) enamel which after firing in a kiln is similar in composition to glass. It is more durable and long lasting. Red vitreous enamels are unstable and have a tendency to reduce to brown in firing.
Moldavite is an olive - green or dull greenish vitreous substance formed by a meteorite impact. Others believe it is the only ‘extraterrestrial’ gemstone.
Used to add decorative colour to jewellery, enamel is a vitreous pigment of metallic oxide mixed with powdered glass that is melted at extremely high temperatures to fuse it to metal, glass or ceramic ...
Made up of a vitreous pigment of metallic oxide mixed with powdered glass, it is fused to the surface of a metal like Copper, Bronze, Silver or Gold under very high temperatures.
The cut specimens are characterized by their vitreous luster high specific gravity, weak color dispersion, double refraction and, when colored, dichroism, which enable them to be distinguished from other varieties of stones of similar appearance, ...
In its simplest terms, all enamel is produced by fusing colored powdered glass to metal to produce a vitreous or glass-like, decorative surface.
Ammolite appears gray to brown and sometimes with shimmering colors with greasy to dull Luster when polished the luster becomes vitreous. Refractive index of the stone usually lies between 1.52 - 1.
It is available in green-blue color with a luster that is earthy to dull or vitreous and waxy. Pure chrysocolla is too soft for jewelry purposes but it is often found in quartz deposits which makes it hard enough to polish for cabochons.
Optics -- R.I . 1.60-1.64 (usually spot reading of 1.60). Biaxial positive. Vitreous (glassy) to silky luster.
Durability -- Hardness 4.5-5. Splintery fracture and perfect cleavage in one direction.
Crystal structure -- Triclinic.
Enamel: A pigment of a vitreous nature fired onto a variety of objects, silver and gold jewellery. A delicate finish and difficult to repair.
It may be divided into four types: unglazed, lustrous glazed (coated with a slight vitreous glaze), lead glazed, or glazed and enameled.
They're usually white or nearly white, flesh-red, bluish, or greenish, and occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other.
Name comes from the Greek "augites", meaning "brightness" because of its bright, vitreous luster. Not affected by acids.
Photos
& Locals:
1.) Haramosh Mtns., Pakistan ...
It is relatively hard and has a greasy to vitreous luster. It may be colorless, or light yellow, pink, or brown. Color is never intense.
Jadeite jade typically contains at least 90% jadeitic pyroxene in a rock that is typically more granular than nephrite. Note the vitreous surface luster of these translucent jadeite beads, which range from 9 to 10.5 mm in diameter.
A silicate of alumina, iron, and magnesia having a bright blue color and vitreous luster.
Iridescence
Reflection of light off internal features in a gem, giving rise to a rainbow like play of colors.
Kunzite, a variety of spodumene, occurs in pale pink and in shades of violet ranging from pale to dark purple with a pinkish veil. Kunzite has a lively, vitreous gleam. This attractive mineral is relatively delicate. Kunzite is extremely fissile.
Preparation and cleaning of the base metal often involve the use of abrasives and acids. Many of the vitreous media contain hazardous oxides which can be inhaled in their raw form or in firing. The use of a kiln or torch is inherently hazardous.
Enamel is a colored, opaque glassy material fused onto metal, pottery or glass to achieve a vitreous or glass-like, decorative surface.
Engraving ...
Vanadates - Minerals containing the vanadate (VO4) radical as a major components.
Variegated - Displaying a range of different colors (Agate)
Vitreous - Having a luster resembling glass.
Luster
The appearance of a surface resulting from reflected light. Diamonds exhibit Adamantine Luster, glass and most gemstones exhibit Vitreous Luster, amber exhibits Resinous Luster.
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 is mainly dependent on stone's surface (polish) and the reflective index of the mineral. Luster can be described as: adamantine, pearly, greasy, metallic, silky, resinous, vitreous, earthy (also known as dull) and waxy.
minerals with a high index of refraction such as diamond appear brilliant and are said to have an adamantine luster, whereas those with a lower index of refraction such as quartz or calcite appear glassy and are said to have a vitreous luster.
It has a vitreous to mother-of-pearl luster. Prehnite cats eye occurs. Deposits are found in Australia, China, Scotland, South Africa, and the USA.
 See also: Stone, Color, Crystal, Gemstone, Mineral
  
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