QUARTZ COLOR
Quartz is naturally a clear mineral. The colors come from impurities in the quartz. The primary cause of color in rose quartz is titanium. Here are some other popular quartz varieties:
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SMOKY QUARTZ – pale brown to black
• CITRINE – yellow
•
AMETHYST – pale mauve to deep violet
• AVENTURINE – most common in green
• TIGER’S EYE – golden to red-brown