Examples of 'spinels' in a sentence
Meaning of "spinels"
Spinel - (noun) a rare gemstone that comes in various colors, often used in jewelry
Show more definitions
- plural of spinel
How to use "spinels" in a sentence
Basic
Advanced
spinels
Magnesium aluminate spinels are particularly useful as absorbers.
Spinels have been known to help of humanity.
Magnesium aluminate spinels are particularly useful as adsorbents.
Spinels are never treated in any way.
The oxides may be simple or complex such as spinels.
These spinels are readily available and effective.
The oxides may be oxides or spinels.
Many spinels are also isomorphous.
Minor minerals include chromium and aluminium spinels and garnets.
Spinels are expensive too.
His earliest scientific work is related to spinels and other minerals.
It is known that spinels comprise complex cubic structures of metal oxides.
Geochemically anomalous traces occur predominantly in chromian spinels and sulfides.
Spinels that possess inclusions that are less visible are more valuable.
The sphere is decorated with rubies and spinels of different shades.
See also
Red spinels may be mistaken for rubies by those lacking experience with gems.
These may be magnesium or aluminum rich with magnesium aluminate spinels preferred.
Synthetic spinels seen here are in crystal form as they appear from the manufacturer.
This reduces the loss of temperature and the time for the growth of the spinels.
Pink and red spinels from Vietnam are the highlights of this butterfly brooch.
Large stones are uncommon and star Spinels are very rare.
Some of the Tunduru area spinels actually rival the finest blue colors of sapphire.
Marquise Single Earring made of sterling silver and rose plating with black spinels.
For a long time, spinels were confused to be rubies.
For example, it is possible to use alumina or aluminium spinels.
Reaction of the spinels with the refractory materials,.
Alternatively, the electrochemically active layer comprises spinels and / or perovskites.
The transparent red spinels were called spinel-rubies or balas rubies.
They do not have a specific denomination, but are generally referred to as spinels.
Originally, natural spinels were used as catalysts for catalytically cracking petroleum.
As mentioned above, potential solid adsorbents are magnesia rich, magnesium aluminate spinels.
However, the finest red spinels can have values approaching that of an average ruby.
Preferred metal oxides include nickel oxide, cobalt oxide and spinels.
It is apparent that the vanadium-bearing spinels form very early in the crystallization sequence.
As mentioned above, potential solid oxides are magnesia rich, magnesium aluminate spinels.
Many spinels have a significant gray secondary hue, and these colors are much less valuable.
Examples of such modifiers include quartz, zirconia, spinels and mixtures thereof.
However, these spinels are thermo-mechanically unstable and tend to delaminate.
Examples of suitable expansion modifiers include quartz, zirconia, spinels and mixtures thereof.
However, most of the finest spinels currently available are mined in Burma.
The mixed aluminum oxides can be chosen from anhydrous aluminates, from spinels and from aluminosilicates.
Many ferrites are spinels with the formula AB2O4, where A and B represent various metal cations, usually.
The products recovered are identified a s alumina-magnesia spinels with the molar ratio of about six.
Again, these thermodynamic considerations pervade all large scale processes for the production of synthetic spinels.
The main associated gem mineral are red and octahedral spinels and blue trapiche-like sapphires.
The stones, offered as synthetic tourmaline, are really tourmaline-colored synthetic spinels.
The preparation of these aluminate spinels is described in numerous patents, such as U. S.
Such ratios can imply " magnesium rich " spinels.
Reaction of the spinels with the slags,.
Some well-known rubies are truly spinels.
