Opal has a Moh’s hardness of 5.5 - 6.5. It is divided into three subgroups: precious opals, fire opals, and common opals.

Precious opals display rainbow-like hues that change depending on the angle they are viewed. Fire opal is yellow-red and is usually milky or cloudy. Common opals are usually opaque and show no play-of-color.

All opals consist of 3-30% water so opal is sensitive to heat. It is also sensitive to pressure and acidic substances.

16" Tourmaline Choker and Earrings
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High heat can cause color change and sudden temperature change can cause fracturing.

Tourmaline & Fine Silver Earrings
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Tourmaline & Fine Silver Earrings
36.00 45.00
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Use warm soapy water and rinse and dry to clean.

30" Raw Tourmaline Necklace and Earrings
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The name “tourmaline” comes from the Singhalese word, “toramelli,” which means mixed gems, demonstrating that it has historically been easily confused with other gemstones.

Tourmaline comes in a wide range of colors including pink, red, yellow, brown, green, blue, violet, black, colorless and multicolored. It can be both opaque and transparent and has a Moh’s hardness 7-7.5.

19" Black Tourmaline & Onyx Necklace
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