Question

what tools are used to test a minerals hardness​

Answer 1

finger nail,copper penny,glass plate,steel file

Answer 2

Fingernail and Copper penny are used to measure the hardness of a mineral.

Explanation:

• Minerals are very hard and solid materials.
• The hardness of a mineral depends on stiffness, toughness, stress, and strain.
• Minerals are made of two or more elements.
• The Mohs hardness test is used to measure the hardness of minerals.
• The objects which are used to measure the hardness are
• Fingernail = 2.5
• Copper penny = 3
• Glass plate  = 5.5
• Steel file  = 6.5