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Spinel (/spɪˈnɛl, ˈspɪnəl/) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4 in the cubic crystal system. The name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals.
The analysis highlights History and Regions as prominent areas in the source structure around Spinel.
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
The extracted context around Spinel shows recurring relationship patterns in the source. For example, Spinel → Afghanistan, Badakshan Province, Baffin Island, Canada, Ilakaka, In, Kenya, Lục Yên District, Madagascar, Mahenge, Matombo, Mogok, Myanmar, Over, Since, Sri Lanka, Such, Tajikistan, Tanzania, The Another extracted example is Spinel → August, By, Edmond Frémy, Hanzawa, In, It, Light, Mg, Sc2S4, Spinel-type, Synthetic, Verneuil, Zn, ZnSc2S4. Use these groups to spot repeated connection types before inspecting the individual relationships.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
spinels red also blue synthetic crystal myanmar aluminium green common transparent minerals system mogok found mineral name ruby cubic pink
TTTA extracted 106 structured relationships around Spinel. Examples in this analysis include Spinel → Category → Oxide minerals and Spinel → Category → Spinel group. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Spinel | Category | Oxide minerals | 1.00 | infobox |
| Spinel | Category | Spinel group | 1.00 | infobox |
| Spinel | Category | Spinel structural group | 1.00 | infobox |
| Spinel | Cleavage | None | 1.00 | infobox |
| Spinel | Color | Various: red, pink, blue, lavender / violet, dark green, brown, black, clear | 1.00 | infobox |
| Spinel | Crystal class | Hextetrahedral (43m) H–M symbol: (43m) | 1.00 | infobox |
| Spinel | Crystal habit | Octahedral or flat triangular plates caused by twinning | 1.00 | infobox |
| Spinel | Crystal system | Cubic | 1.00 | infobox |
| Spinel | Diaphaneity | Transparent to opaque | 1.00 | infobox |
| Spinel | Formula | MgAl 2O 4 | 1.00 | infobox |
| Spinel | Fracture | Conchoidal | 1.00 | infobox |
| Spinel | IMA symbol | Spl | 1.00 | infobox |
| Spinel | Luster | Vitreous | 1.00 | infobox |
| Spinel | Mohs scale hardness | 7.5–8.0 | 1.00 | infobox |
| Spinel | Optical properties | Isotropic | 1.00 | infobox |
| Spinel | Other characteristics | Weakly to medium magnetic; sometimes fluorescent (natural: sometimes red; synthetic: red) | 1.00 | infobox |
| Spinel | Pleochroism | Absent | 1.00 | infobox |
| Spinel | Refractive index | 1.719 | 1.00 | infobox |
| Spinel | Solubility | None | 1.00 | infobox |
| Spinel | Space group | F 4 3 m (No. 216) | 1.00 | infobox |
| Spinel | Specific gravity | (Depending on the composition) The rare Zn-rich spinel can be as high as 4.40, otherwise it averages from 3.58 to 3.61. | 1.00 | infobox |
| Spinel | Streak | White | 1.00 | infobox |
| Spinel | Strunz classification | 4.BB.05 | 1.00 | infobox |
| Spinel | Twinning | common | 1.00 | infobox |
| Spinel | Unit cell | a = 8.0898(9) Å; Z = 8 | 1.00 | infobox |
| Spinel | is a | good imitation of aquamarine beryl | 0.90 | text |
The concept neighborhoods around Spinel bring nearby vocabulary together. In this analysis, examples include Synthetic, Common and Mineral. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Spinel, one of the stronger structural bridges in this analysis connects Spinel with Occurrence. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Spinel to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Regions, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Spinel · EN edition · Analysis: TopicsToTalkAbout