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spinel::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | mineral |
| Has types | ceylonite, spinel ruby, pleonaste, ruby spinel |
Examples of spinel
spinel
Spinel is the magnesium aluminium member of the larger spinel group of minerals.
From the en.wikipedia.org
It also occurs in the minerals beryl, cryolite, garnet, spinel and turquoise.
From the en.wikipedia.org
Red spinel may be mistaken for ruby by those lacking experience with gems.
From the en.wikipedia.org
A spinel-rich micro-inclusion appears to have been entrapped while the rim was forming.
From the sciencedaily.com
The second step involves thermal decomposition under air, leading to crystalline spinel.
From the nature.com
The transparent red spinels were called spinel-rubies or balas rubies.
From the en.wikipedia.org
Plagioclase, quartz, gypsum, and spinel often exhibit contact twinning.
From the en.wikipedia.org
Olivine becomes denser, with a structure similar to that of another mineral, known as spinel.
From the newscientist.com
Between 25 km and about 60 km, spinel is the stable aluminium phase.
From the en.wikipedia.org
- A hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones
- Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.
- (Spinels) These are a range of metal oxides of formula AB2O4.
- A gemstone found in a wide range of colors, the most valuable resembling ruby red.
- MgAl2O4. An accessory mineral in some igneous rocks.
- The classification of a large group of related minerals that has a small group of gemstone quality stones. Spinel exhibits a wide range of colors including red, pink, orange, yellow, brown, blue, violet, purple, green and black. On Mohs' scale of hardness, spinel is 8. ...
- (MgAl2O4): This representative member of the group can be found in a range of colors, including red, pink, blue, green, violet, brown, and black.^[1] The red variety appears like a ruby and is valued as a gemstone.^[2]
- (mineralogy) Spinelle [ MgO Al2O3, natural magnesia aluminate ]
- MgAl2O4, but also a class of minerals with the general formula A^2+B2^3+O4^2- where A & B are cations such as Fe, Mg, Mn, Al, Cr, Si.... Magnetite is a spinel with Fe in both the ferric & ferrous forms. Wikipedia.
