SCLEROMETER
Source: 567
Scle‐rom″e‐ter (?), n. [[Gr. σκληρόσ hard + -meter.]] An instrument for determining with accuracy the degree of hardness of a mineral.
Source: 567
Scle‐rom″e‐ter (?), n. [[Gr. σκληρόσ hard + -meter.]] An instrument for determining with accuracy the degree of hardness of a mineral.