Spinel
![](/Images/godic/202502/08/Spinel21917.jpg")
![Cut spinel](/Images/godic/202502/08/Spinelgem1917.JPG")
Spinel /ˈspɪnɛl/ is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4 in the cubic crystal system. Its name comes from Latin "spina" (arrow). Balas ruby is an old name for a rose-tinted variety.
Ruby spinel
英语百科
- once through fuel cycle
- once through operation
- once through process
- once through reactor
- once through steam boiler
- Once Through Steam Generator
- once through system
- once through then out
- once through tubular boiler
- once through water supply system
- once through yield
- once too often
- once upon
- once upon a time
- Once Upon a Time in America
- once you go black, you never go back
- Onchan
- on chance
- on change
- Onchan Head
- on charge of
- on charges of
- on ... chest
- onchidiid
- Onchidiidae