Lexic.us

Definition of Spinel

1. Noun. A hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones.

Definition of Spinel

1. n. A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium.

2. n. Bleached yarn in making the linen tape called inkle; unwrought inkle.

Definition of Spinel

1. Noun. (minerology) any of several hard minerals of cubic symmetry that are mixed oxides of magnesium and aluminium and are used as gemstones of various colours ¹

2. Noun. (context: solid state chemistry) any crystalline material, not necessarily an oxide, that possesses the same crystal structure as this mineral ¹

¹ Source: wiktionary.com

Definition of Spinel

1. a mineral [n -S]

Lexicographical Neighbors of Spinel

Literary usage of Spinel

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana, William Ebenezer Ford (1922)
"The magnesium may be in part replaced by ferrous iron or manganese, and the aluminium by ferric iron and chromium. Var. — RUBY spinel or Magnesia spinel. ..."

2. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana (1922)
"Compo ition normal, with little or no iron, and sometimes chromium oxide to which the red color has been ascribed. The varieties are: (a) spinel-Ruby, ..."

3. Mineralogy: An Introduction to the Scientific Study of Minerals by Henry Alexander Miers (1902)
"Even the colour of the spinel ruby is due to intermixture with a small proportion of the chromium compound, as shown by the following typical analysis of a ..."

4. Reports of the North Carolina Geological and Economic Survey (1905)
"spinel. spinel crystallizes in the isometric system, the octahedron being the ... At the Corundum Hill mine massive spinel is found, throughout which are ..."

5. Petrographic Methods: The Authorized English Translation of Part I by Ernst Weinschenk, Robert Watson Clark (1912)
"spinel Group (1) The minerals of the spinel group (compare magnetite and chromite, page 206) occur in sharp octahedral crystals and twins according to the ..."

6. Rock Minerals: Their Chemical and Physical Characters and Their by Joseph Paxson Iddings (1911)
"Colors: red of various shades, yellow, violet to blue in ruby spinel or magnesia spinel; green, ... spinel, red, Ceylon: nP= 1.7121 n,= 1.7135 Tib =1.7261 ..."

7. Petrographic Methods: The Authorized English Translation of Part I by Ernst Weinschenk, Robert Watson Clark (1912)
"spinel Group (1) The minerals of the spinel group (compare magnetite and chromite, page 206) occur in sharp octahedral crystals and twins according to the ..."

8. A Treatise on Metamorphism by Charles Richard Van Hise (1904)
"spinel. occurrence. — spinel occurs as an original constituent in the igneous ... The more important minerals from which spinel is derived are almandite, ..."

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