orthorhombic
/ˌɔrθəˈrɑmbɪk/
adjective
- Describing a crystal shape where the three axes are all at right angles to each other but have different lengths.
- The jeweler explained that the orthorhombic shape of the topaz gave it a unique sparkle.
- The mineral aragonite has an orthorhombic crystal structure, unlike the hexagonal structure of calcite.
- In chemistry class, we learned that olivine forms orthorhombic crystals.