1. A hard compact kind of calcite
   - alabaster, oriental alabaster, Mexican onyx

Derived forms: onyx marbles

Type of: calcite

• slash
• slash pocket
• slashed
• slasher
• slashing
• Slask
• slat
• slate
• slate club
• slate pencil
• slate roof
• slate-black
• slate-colored junco
• slate-gray
• slate-grey
• slater
• slatey
• slather
• slating
• slattern
• slatternliness
• slatternly
• slaty
• slaty-gray
• slaty-grey