The key point
Scratch resistance, impact, settings, and the limits of one hardness number.
Hardness is one part of durability
The mineral reference for pectolite lists Mohs hardness of 4.5–5 and notes that compact material can be tough. Hardness describes scratch resistance. It is different from impact resistance, chemical resistance, and setting security. One number cannot predict every outcome for an individual piece.
Match the piece to the activity
A pendant faces different contact from a ring worn while exercising or working with tools. Consider where the stone touches hard surfaces and whether edges are exposed. A careful occasional wearer and an active daily wearer may reasonably choose different settings for the same stone.
Ask about the setting
Discuss a protective rim, stone thickness, edge exposure, and future inspection or repair. The design should work with the actual stone rather than assume every cabochon tolerates the same setting pressure. Inspect the mounting before purchase and after a significant knock.
Use a wearing routine
Remove jewelry for activities with impact or abrasion, avoid contact with chemicals, and store it separately. If a stone loosens or a new line appears, stop wearing it until a jeweler assesses the piece. Home scratch tests provide little practical reassurance and can permanently mark a surface.
Sources & scope
Mineral-species reference; properties of a particular gem or mixed specimen can require separate assessment.
Our initial library was developed with AI assistance. Product claims require separate item-specific evidence. Read our editorial standards.