Mohs Scale of Hardness: Crystal Durability & Care Guide

The Mohs Scale of Hardness is the essential tool for understanding crystal durability, care requirements, and how to protect your collection from damage. Created in 1812 by German mineralogist Friedrich Mohs, this simple 1-10 scale tells you which crystals can scratch others, which need gentle handling, and which can withstand everyday wear and water exposure.

TL;DR

  • Mohs Scale rates crystal hardness from 1 (softest, like Talc) to 10 (hardest, Diamond)
  • Hardness determines scratch resistance, water safety, and appropriate care methods
  • Soft crystals (1-4) need gentle care, medium (5-6) moderate care, hard (7-10) are durable

Key Points:

Understanding the Mohs Scale helps you care for your crystals properly, preventing damage and ensuring your collection stays beautiful for years to come.


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