Black Agate

Black Agate Agate is a natural semiprecious gemstone. Black agate is sometimes referred to as black onyx. The highest quality agate is mined in Brazil which is why Shane Co. sources the majority of its gemstones from there. Agate measures 6-7½ on the Mohs scale and is very robust. It can be polished to a high shine, which is why it’s an excellent choice for any woman’s jewelry wardrobe. To keep it in tiptop condition, black agate should be cleaned with a soft cloth and warm, soapy water.

Shop Our Black Agate Collection


What Customers Say About Us
I have to compliment the Shane Company and your employees for their help in making the biggest decision of my life a success. I found the perfect setting and stone for my future wife at ShaneCo.com.  Tom Donnelly - Tampa, FL
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