Boron: A soft, brown, nonmetallic element. It is extracted with some difficulty and in its reduced state appears as a substance of a deep olive color, in a semi-metallic form, ...
Boron: 0.0010%
Beryllium: 0.00026%
Gems, in Nature form: 1) from solutions by precipitation, 2) from melts by crystallization, or 3) from vapors by condensation.
boron An element that is sometimes found in diamonds causing blue in type 2B natural blue diamonds.
bort A lower grade of rough diamond unsuitable for polishing.
bottom halves Lower girdle facets.
Boron would come from a nibble of ulexite, if we really needed any.
Calcium would come from calcite or gypsum.
Chromium would come from a smidgen of fuchsite or mariposite.
Boron Atoms
Blue, Gray
Green Diamonds
Green diamonds are a separate case: these diamonds can contain clustered nitrogen atoms or they can contain no nitrogen atoms - what gives them their color is that they have been bombarded by nuclear rays ...
The boron atom joins to three oxygen atoms to form the borate radical, (BO3)3-. After this anion group has formed, each oxygen atom still has one electron available for bonding.
Borax {bohr'-ahn} boron, hydrated sodium borate, borax acid
Crystal sys: monoclinic
Color:colorless to white with yellow or blue tint
SG: 1.74
Hardness: 2 - 2.5
Comments Bornite ... {bohr'-nyt}...copper iron sulfide Crystallography: isometric ...
Tourmaline is a complex crystalline silicate containing aluminum, boron and other elements. Its name is derived from the Sinhalese (Sri Lankan) word tura mali, meaning "stone of mixed colors.
It is the principle boron-containing mineral in the crust and has its genesis in both igneous (principally pegmatites) and metamorphic rocks.
This diamond contains boron with it hence it appears as blue color for a normal eyesight, when this diamond is shown under ultraviolet rays immediately the blue colored diamond will be turned to red color.
This revolutionary product was made from silica and boron oxide which in combination formed a very stable glass with good workability and high thermal shock resistance. It was manufactured under the name Duran and for a time was very successful.
In order to understand this variety of colour, you will have to brush up your knowledge of gemmology a little: tourmalines are mixed crystals of aluminium boron silicate with a complex and changing composition.
Tourmalines are mixed crystals of aluminium boron silicate with a complex and changing composition. The Mineral group is a fairly complex one. Even slight changes in the composition cause completely different colours.
Boron oxide (B2O3)
Chromium(III) oxide (Cr2O3)
Dinitrogen trioxide (N2O3)
Erbium(III) oxide (Er2O3)
Gadolinium(III) oxide (Gd2O3)
Gallium(III) oxide (Ga2O3)
Holmium(III) oxide (Ho2O3)
Indium(III) oxide (In2O3)
Iron(III) oxide (Fe2O3) ...
It is a very complex silicate, containing aluminum, magnesium, sodium (or other alkali metal, as, for example, lithium), iron, boron, and hydrogen. As Ruskin says of it in his The Ethics of the Dust, when Mary asks "and what is it made of?
Being a complex silicate of Aluminum and Boron, its chemical composition varies with the presence of varied minerals like sodium, calcium, iron, magnesium, lithium and many more.
Chemically speaking, tourmaline is a complex aluminum and boron silicate mineral. Colors are red, pink, blue, green, yellow, violet, and black; sometimes it is colorless.
Tourmaline is the most common boron bearing silicate mineral and is almost exclusively found in geological formations known as pegmatites, where gem quality stones occur in open pockets in the pegmatite dikes.
Most natural blue diamonds contain boron atoms which replace carbon atoms in the crystal matrix, and also have high thermal conductivity. Heat is a property contained in most materials, and has the tendency to flow to areas of lesser heat.
A silvery metallic element of the boron-aluminum group, found in gadolinite and other rare minerals, and extracted as a dark gray powder.
Tourmalines are mixed crystals of aluminium boron silicate, and even slight changes in their chemical composition cause completely different colours. There are tourmalines in single colours, while some may have two colours in a single stone.
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.
Natural blue diamonds containing boron atoms, and synthetic diamonds that are doped with boron, are known as p-type semiconductors.
Type IIa diamonds are free of impurities such as nitrogen, boron and hydrogen, making these diamonds exceptionally transparent and usually colorless.
The presence of nitrogen usually gives a diamond a yellow or orange hue; boron imparts many shades of blue; and hydrogen produces violet colors. Tremendous pressures on a diamond can compress its structure causing red, pink, purple or brown stones.
Blue Diamonds - Natural blue diamonds contain the element boron (B) which changes the conductivity of the diamonds.
breakage from falls or impacts. A diamond will shatter if hit with an ordinary hammer.
Blue Diamonds
Brilliance ...
Boracite contains a high concentration of the chemical Boron. Boracite is a mineral of a white or grey colour occurring massive and in isometric crystals. Crystals of Boracite are vitreous, transparent to translucent, and occur in a variety of forms.
Chemical Composition: complex silicate of boron and aluminum
Crystal System: trigonal
Hardness: 7-7.5
Specific Gravity: 3.0-3.25
Geographic Origins: Namibia, Zambia, Nigeria, Russia, Brazil, Maine, North Carolina, California ...
Blue A very rare and valuable colour for diamonds. All natural blue diamonds are type 2b, and contain traces of boron.
Blemish An external mark or imperfection on a diamond, implicitly only slight and capable of being removed.
Fluorescence is caused by trace elements, usually boron, that seep into the diamond when it is created. While fluorescence does not necessarily affect a diamond's value, it is listed on a diamond grading report.
Named for an original source location in Danbury Connecticut. It shows a green color in a flame test (boron), it is not particularly soluble in acids.
Photos
& Locals: ...
A complex crystalline silicate containing aluminum, boron, and other elements.
Trained Grader
A person who has a basic understanding of gem grading, but does not have the advanced experience of a skilled grader.
Copper that has had deoxidiser added to reduce oxygen. Phosphorus is commonly added but other elements such as boron or magnesium may be used.
Dezincification ...
Tourmalines are gemstones with deep brilliance and incomparable variety of colors. These Gemstones are mixed crystals of aluminium boron silicate with a complex and changing composition.
Joel Arem in his Color Encyclopedia of Gemstones, the chemical make-up of bixbite also includes boron, lithium, lead, niobium, rubidium, tin, titanium, zinc, zirconium, "and traces of other elements".
I sent the crystal fragment to my good friend at Caltech, Dr. George Rossman. He played with me regarding the ID until I begged him. His reply was clever. "You have calcium zirconium and boron here." ...
However, almost all diamonds contain some degree of color impurity caused by lingering traces of nitrogen, boron, hydrogen or other elements. Most diamonds are affected solely by nitrogen traces, which create pale yellowish or brownish tints.
Diamonds that have formed with Nitrogen, an abundant element, in their crystal structure, are yellow. Blue Diamonds, which are very rare, require Boron, a very rare element, to be present when formed.
 See also: Stone, Crystal, Color, Gemstone, Natural
  
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