You searched for: “conchoidal
conchoidal
1. Used to describe fracture surfaces in rocks and minerals that are concave or convex and shaped like shells.
2. Having or being a surface shaped like a bivalve shell with smooth ridges and depressions; such as, conchoidal fracture.
3. Relating to, or being a surface characterized by smooth, shell-like convexities and concavities, as on fractured obsidian; shaped like a shell; having alternate convexities and concavities on the surface.
4. Similar to or like a shell.
5. Of or relating to a mineral or rock surface that is characterized by smooth, shell-like curves: obsidian and quartz often have conchoidal fractures.
This entry is located in the following unit: concho-, conch-, conchi- + (page 2)