Crystalline

Crystalline Quartz - See Quartz for information Woodworking Kulturystyka Fishing California Home Foreclosures Netflix DVD Rental ...

Note that prasiolite is macro-crystalline quartz. A green cryptocrystalline quartz, where the individual crystals are too small to be seen and the resulting transparency is translucent, would be called chrysoprase.

Crystalline quartz is quartz that occurs in distinct crystals. It occurs in a number of familiar varieties distinguished by color.

Microcrystalline is a type of mineral structure in which the crystals are so small that they can only be seen using a microscope. MICROMOSAIC ...

Crystalline structures occur in all classes of materials, with all types of chemical bonds. Almost all metal exists in a polycrystalline state; amorphous or single-crystal metals must be produced synthetically, often with great difficulty.

Crystalline, including amethyst, citrine, rose quartz, cairngorm, morion, smoky quartz, milky quartz, and cat's-eye quartz. Cryptocrystalline, including chalcedony (in several varieties), plasma (bloodstones), and flint.

Crystalline: meaning large single crystals of aggregates of individual crystals. Having the hexagonal shape or habitat of the mineral. (Rose quartz is a minor exception as it rarely forms good crystals.) ...

crystalline (adj) of or like crystal, formed by crystallization. crystallization (v) the process of forming a crystal structure.

Crystalline Having a regular crystal structure. Crystallography The science of the internal structure of crystals.

Crystalline crusts of blue-green langite have formed on the walls of this Victorian copper mine in the decades since it was abandoned.

Crystalline: A substance composed of crystals or resembling crystal in transparency, structure and outline. Crystallize: To cause a material to form crystals or to assume both the internal structure and external form of a crystal.

Crystalline: A substance that is either composed of crystals or that resembles crystals in structure. Crystallize: To cause a material to form crystals of to take on the structure of crystals.

A crystalline mineral named from the latin word "spina" for thorn and occuring in a variety of colors, the most valuable of which being red. Sunstone ...

The Crystalline Connection When we discovered crystals a number of years ago our lives changed. Though we' been exploring metaphysics for many years prior to this discovery working with crystals gave us a newfound clarity on the purpose of our lives.

Microcrystalline Having crystal grains only visible under a microscope. Micromount ...

MICROCRYSTALLINE Microcrystalline is a type of mineral structure in which the crystals are so small that they can only be seen using a microscope.

Fully Crystalline Quartz This group includes rock crystal, amethyst, citrine, cairngorm and smoky quartz. Quartzite Quartzite is composed of an interlocking mass of quartz crystals with irregular boundaries, produced by metamorphic processes.

Cryptocrystalline quartz includes varieties whose individual crystals are too small to be easily distinguished.

Cryptocrystalline Quartz - material is an aggregate of a multitude of small crystals. Two types of aggregates; fibrous (called chalcedony) and granular: Fibrous - characterized by microscopic slender crystals ...

Crypto crystalline - The structure of a substance as chalcedony, that consist of very small crystals but show no external sign of crystal structure.

Nacre: A crystalline substance that coats the mantle or nucleus within the oyster to form a pearl.

Quartz: A crystalline mineral used for gems, usually colorless and transparent. Rhinestone: Real rhinestones are cut from rock crystal. Today, most rhinestones that are used in jewelry are made of glass which has the look of natural stone.

Non-crystalline, iridescent silica. Oxidation (Antiqued) Darkening or other color changes of metal which is accelerated by humidity, especially salty air or the presence of acidic perspiration.

is a cryptocrystalline variety of chalcedony, a stone composed of quartz layers. It comes in many different varieties such as Blue Agate, Blue Lace Agate, Crazy Lace Agate, Green Agate, Indian Agate, Moss Agate, Tree Agate, and Wood Agate.

Quartz is a crystalline mineral used for gems, including amethyst and rock crystal. It is available in a variety of colors. R ...

Nacre - The crystalline substance secreted by a mollusk that coats the irritant, eventually producing a pearl. Natural - Any pearl that is not cultured. Any gemstone that has not been color or clarity enhanced.

A branching, crystalline structure of native copper. Individual crystals are octahedral and dodecahedral. A sample of malachite. Return to top of page ...

Gahnite - as crystalline specimens were reported by D.O.T personnel during the blasting, though positive identification has not been made to date. Hematite - many bladed crystals up to ½ inch found on one specimen.

A smooth hard crystalline substance composed of microscopic crystals of calcium carbonate. A mollusk secretes this substance and uses it to coat an irritant that has become lodged in its soft inner body.

A type of microcrystalline quartz with hydrated silica (opal). It appears naturally in bluish greys to brownish-reddish colors to white or cream. Because of its molecular structure, it is very porous and easy to dye.

SulfidePyrite (crystalline) FeS2 Most distinguishing features: Colour, hardness, streak and habit are best indicators. Gives off sparks when struck with a hard metal object.

This amazingly crystalline, perfectly cut, untreated natural “gem” is a perfect combination of fiery pink with a kiss of orange.

Diamond's tight crystalline structure, here shown modeled against a diamond, slows light down like no other substance on Earth.

Widmanstatten A crystalline pattern seen in iron meteorites after acid etching Top ...

Lapis Lazuli: A crystalline aggregate composed largely of blue lazurite. It also will have pyrite and mica throughout it, which makes Lapis Lazuli look like a night sky.

Quartz is a crystalline mineral that come in many forms, including amethyst, aventurine, citrin, opal, rock crystal, tiger's eye, rose quartz,and many others. Rutilated quartz and tourmalinated quartz have needle-like inclusions of other minerals.

Green Jade - A microcrystalline gem variety of jadeite or nephrite (actinolite) with a toughness (resistance to breakage) exceeded only by that of carbonado diamond; ranges from nearly white to emerald-green.

Diamonds, a form of crystalline carbon, are prized because they are exceptionally hard and durable, have high refractivity and brilliance, and because really fine diamonds are rare.

AgateAgate is a variety of chalcedony (a family of microcrystalline quartz). AigretteAn aigrette (meaning "egret" in French) is a feather-shaped piece of jewelry that is worn in the hair or on a hat.

opal A non-crystalline, iridescent silica. opaque Something which is not transparent and does not reflect light; dull. open work A ring setting with open sidework which may also allow for viewing of the bottom of a stone, if included in the setting.

To protect itself, the oyster coats an intruding object or grain of sand with nacre, a crystalline substance that builds up over time, resulting in a shimmering, iridescent creation. The culturing process developed by man mimics nature.

The crystalline structures are especially beneficial in these areas. It removes tendencies toward avoidance or denial, ...

mineral A mineral is a naturally occurring compound with a specific chemical composition and regular crystalline structure.

Crystalline - describes substances with a precise atomic arrangement. Cultured - refers to pearls that have been made by the artificial implantation of a nucleus over which a nacre layer grows to form the pearl.

It is considered a mineraloid, rather than a full mineral, because its structure is not truly crystalline. This stone has the same chemical composition as quartz, but contains up to 13% water.

The triangular shape is the result of the octahedral crystalline structure that makes up a diamond, as the face of the octahedral form is a triangle.

is known from several locations including: the Montgomery County quarry, where it is often gradationally intergrown with various shades of green wavellite; the Wilson Springs vanadium mine where it formed as small colorless to white crystalline ...

The variety of chalcedony is even greater than transparent quartz varieties because it includes cryptocrystalline quartz with patterns as well as a wide range of solid colors.

Mg+2 and Fe+2 which are very similar in charge (valence) and radius) is very common and usually results in a crystalline solution (solid solution).

Opal is a mineral composed of noncrystalline (amorphous) silica (and some water) and is a species of quartz.

Silicon itself is a dark, gray, crystalline element that seems half metallic, half non-metallic in its properties. It is never found by itself in nature but about twenty-eight per cent.

Chalcedony is a catch-all term for cryptocrystalline quartzes ((quartz with microscopically small crystals).

This changes the diamond's color (as the radiation changes the crystalline structure of the diamond). The change in the diamond is permanent.

Agate is a variety of chalcedony (a family of microcrystalline quartz). Agate is a very common stone that is often used in jewelry. It is found in a wide range of colors, including black, gray, brown, reddish, green, pink, blue, and yellow.

As a response to an irritating object inside its shell, the mollusk will deposit layers of calcium carbonate in the form of the minerals aragonite or calcite (both crystalline forms of calcium carbonate) held together by an organic horn-like ...

The primary Microcrystalline crystal classification of Quartz is Trigonal, containing four axes, three of which intersect to form a plane intersected by the fourth.

Throughout the series of articles, we have attempted to show you the world of symmetry present in the crystalline world around you. But symmetry is present everywhere. Symmetry is present in varying degrees in the biological world.

Tourmaline: A complex crystalline silicate occurring usually in three-sided or six-sided prisms terminated by rhombohedral or scalenohedral planes containing aluminum, boron, and other elements.

Quartz comprises several different groups of gems from crystalline quartz (crystals viewable by the naked eye) and cryptocrystalline (microscopic crystals).

An amorphous or microcrystalline mineral, SiO2 .nH2 O ; may be tridymite or cristobalite; has a varying proportion of water (as much as 20% but commonly 3% to 9%); occurs in nearly all colors; transparent to nearly opaque; ...

See also: Crystal, Mineral, Stone, Color, Quartz