Evanston Store Hours
| Sunday: | CLOSED |
|---|---|
| Monday: | 10:30 am - 5:30 pm |
| Tuesday: | 10:30 am - 5:30 pm |
| Wednesday: | CLOSED |
| Thursday: | 10:30 am - 7:00 pm |
| Friday: | CLOSED - July 4th |
| Saturday: | 10:00 am - 5:00 pm |
Prehnite is a light green, translucent stone that forms in veins of volcanic rock- primarily basalts and granites. Prehnite is named after Colonel Hendrik Von Prehn (1733-1785), who brought Prehnite from S. Africa to Europe. It forms in rounded crystal masses, and commonly forms epimorphs after Anhydrite, Glauberite, and Laumontite.
After collecting fossils as a hobby for many years growing up, Dave Douglass opened Dave's Down to Earth Rock Shop in 1970 at the age of 20 (with the help of his parents) at 1312 Chicago Avenue in Evanston, Illinois. The shop contained minerals and fossils, mostly self-collected by the Douglass family.
