Hollandite star in quartz is a rare type of quartz crystal with black star-shaped inclusions of the mineral hollandite. It's also known as star hollandite quartz, black star quartz, or urchin quartz.
102gram
Hollandite star in quartz is a rare type of quartz crystal with black star-shaped inclusions of the mineral hollandite. It's also known as star hollandite quartz, black star quartz, or urchin quartz.
102gram