| 1. | Lazurite at one time was used as a synonym for azurite.
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| 2. | Ultramarine withstands heat, but azurite turns to black copper oxide.
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| 3. | Associated minerals include azurite, calcite, malachite, and smithsonite.
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| 4. | Pseudomorphs after more tabular or blocky azurite crystals also occur.
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| 5. | Azurite is also incompatible with aquatic media, such as saltwater aquariums.
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| 6. | Azurite is naturally occurring in Sinai and the Eastern Desert of Egypt.
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| 7. | In order to preserve its deep color, azurite was ground coarsely.
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| 8. | Fine-ground azurite produces a lighter, washed-out color.
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| 9. | Green eyeshadow came from poisonous malachite, while blue came from azurite.
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| 10. | Azurite was used as a blue pigment since antiquity.
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