Packet 5: Bonus 16

A scale, measuring this quantity, was inspired by relativistic observations made by Theophrastus and Pliny the Elder. For 10 points each:
[10e] Name this quantity measured by the Vickers scale, which was preceded by the Mohs scale that placed diamond at 10.
ANSWER: mineral hardness [or Mohs hardness scale or Vickers hardness scale]
[10m] This property is defined as the tendency to split along namesake planes in the mineral’s crystal structure.
ANSWER: cleavage [or cleavage planes]
[10h] Thomas Turner invented these handheld devices that work by applying a controlled force to a material, and then measuring the resulting indentation to determine hardness.
ANSWER: sclerometers [accept Turner-sclerometer]
<Science - Other, Spencer Manning> | VAULT II Packet 05

HeardPPBE %M %H %
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