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| Scientific Properties: Category: Quartz variety Chemical formula: Silica, SiO2Color: White to grey, light blue, orange to red, black.
 Mohs scale hardness: 7
 Luster: Waxy
 Streak: White
 |  |  | Metaphysical guide:Primary Chakra: Varies by type and color
 Astrological sign(s): Gemini
 Vibration: Number 7
 Agate can help those who have repressed emotional issues that need to be addressed so that they can let go (release) and heal. Many feel that Agate has an anti-depressant quality.
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