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. |