The word garnet comes from the 14th-century Middle English word gernet, meaning 'dark red'. It is borrowed from Old French grenate from Latin granatus, from granum ('grain, seed'). This is possibly a reference t… See more

Garnet species are found in every colour, with reddish shades most common. Blue garnets are the rarest and were first reported in the 1990s.
Garnet species' light transmission properties … See more

• Almandine: Fe3Al2(SiO4)3
• Pyrope: Mg3Al2(SiO4)3
• Spessartine: Mn3Al2(SiO4)3
Almandine… See more

Also known as rare-earth garnets.
The crystallographic structure of garnets has been expanded from the prototype to include chemicals with the general formula A3B2(CO4)3. Besides silicon, a large number of … See more

The mineral garnet is commonly found in metamorphic and to a lesser extent, igneous rocks. Most natural garnets are compositionally zoned and contain inclusions. Its crystal lattice structure is stable at hi… See more