- Locality
- Mt. Tamalpais, Marin Co., California, USA
- Minerals
- Quartz
- Dimensions
- 7 x 2.5 x 2.3 cm
- Size class
- Small Cabinet
- SID
- ST568
Undamaged single Quartz crystal with a sharp triangular termination and a grey phantom near the tip. An excellent Marin Co. Quartz.
