Quartz Crystals from California

About Us

Specimens for Sale

coming soon



This Old Rock is the only source for quartz crystals from California where you can buy online directly from the mine owner! We feature fully terminated
quartz crystals of all sizes, clusters, points, cabinet specimens, to massive crystal structures weighing thousands of pounds.

This Old Rock invites you to the tendering of our unique architectural grade landscape materials for sale.
Each specimen is cataloged, measured, weighed, and photographed as legacy material, which ensures authenticity.

When you visit the California State Mining and Mineral Museum in Mariposa, look for two crystals from This Old Rock on display.

The unusual history of this site is available through film, photographs, and documentation which may be used to enhance your placement.
We work with individual collectors, museums, landscape designers, and licensed contractors.

This Old Rock is Private Property, visits are by Appointment Only. Schedule an appointment, let us know what size crystals you need.
We take time to prepare for your visit, and guarantee your satisfaction.

Thank you for your consideration.
John French

Email: thisoldrock@cal.net

Located near Placerville, in the heart of the historic Mother Lode region of California.

All photos by This Old Rock, or John French are Copyrighted, ©, and may not be used without written consent. All Rights Reserved.   This Old Rock    1998 - 2014