Moh's Hardness Scale beads
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Moh's Hardness Scale

It's a great idea to know how hard a specific stone is when designing jewelry. For instance, Angelite is a very soft stone (Hardness 3) and probably not suitable for bracelets as it is too soft for everyday wear. We also think it's a good idea to educate the persons receiving your jewelry on caring for their gemstones! Keep in mind that some stones may be harder in one direction than the other. For instance, Calcite is easily scratched with a nail in one direction (Hardness 2), but difficult to scratch in another direction (Hardness 3).

Here are some Handy points of reference most people have laying around the house:

  • Fingernail, about 2 -2 1/2
  • A copper penny is about a Hardness of 3
  • A steel knife, a bit over 5 and glass about 5 1/2. (Really good steel runs about 6 1/2)

Moh's Hardness Scale
StoneHardness
Talc1
Gypsum2
Calcite3
Fluorite4
Apatite5
Feldspar (Unakite, Epidot, Moonstone, Sunstone, etc)6
Quartz (Citrine, Amethyst, Smoky, etc.)7
Topaz8
Corundum (Sapphire, Ruby)9
Diamond10

Standard Shipping within U.S. - First Class $5.00, unlimited items
Refund issued on items returned within 30 days of receipt in undamaged and resellable condition less a 5-15% restocking fee. See Policies for more details.
PRICES SUBJECT TO CHANGE WITHOUT NOTICE
Because of rapidly fluctuating metal/gemstone markets, we reserve the right to change prices as needed.

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