AllMineralsRock
Spinel Vs. Zircon
Spinel is a very popular gemstone composed of magnesium aluminum oxide.[1] Zircon is also a very popular gemstone and its chemical composition is zirconium silicate.[2]
Quick Facts on Differences of Spinel and Zircon
For a quick recap of the differences spinel and zircon:- For chemical formulas, spinel is MgAl2O4 while zircon is ZrSiO4.
- While both spinel and zircon is vitreous, in terms of luster, zircon can be adamantine or greasy.
- Spinel streaks white while zircon streaks colorless.
- Spinel can be commonly red while zircon can be commonly brown.
- Spinel's rarity is more rare than zircon.
- Spinel's specific gravity is lower than zircon - spinel ranges from 3.58 to 3.58 and zircon ranges from 3.95 to 4.08.
Quick Facts on Similarities of Spinel and Zircon
The similarities of spinel and zircon include:- Spinel and zircon both can be opaque, translucent or transparent.
- Spinel's hardness overlaps with zircon - spinel ranges from 7.5 to 8 and zircon ranges from 6 to 7.5 on the Moh's scale.
Summary of Spinel
Spinel is a mineral that is commonly found in a variety of geological environments. It is a magnesium aluminum oxide mineral that can be found in a range of colors, including red, blue, green, yellow, and purple. It is often used as a gemstone due to its vibrant colors and durability, which makes it an excellent choice for jewelry.Summary of Zircon
Zircon is a mineral that belongs to the group of nesosilicates. It is a naturally occurring mineral that is usually found in igneous rocks and sedimentary deposits. Zircon is a hard mineral that has a range of colors including yellow, brown, red, green, and blue. It is also known for its high refractive index, which makes it a popular gemstone.Table Comparison of Spinel vs Zircon
| Spinel (src) | Zircon (src) | |
|---|---|---|
| Transparency | transparent, translucent, opaque | transparent, translucent, opaque |
| Chemical Formula | MgAl2O4 | ZrSiO4 |
| Chemical Composition | magnesium aluminum oxide | zirconium silicate |
| Specific Gravity | 3.58, 3.58, 3.61, 3.98 | 3.95, 4.08, 4.2, 4.6, 4.6, 4.8 |
| Hardness | 7.5, 8 | 6, 7.5 |
| Streak | white | colorless |
| Refractive Index | 1.719, 1.92 | 1.78, 1.85, 1.85, 1.92, 1.93, 2.01 |
| Hydrous | No | No |
| Colors | common: red sometimes: brown, green, orange, colorless less common: blue, gray, pink, rose, black, lilac, white, purple, yellow |
common: brown sometimes: red less common: blue, gray, pale, pink, green, white, orange, purple, yellow, colorless |
| Solubility | Insoluble | Insoluble |
| Category | spinel | nesosilicate |
| Fracture | conchoidal | conchoidal, uneven |