Tweet Midwest Sphalerite 'Trace Occurrences' Speaker: Len Piszkiewicz Wednesday, 11/11/26 07:00 PM - 09:00 PM Contact: Website: Click to Visit Cost: Free Save this Event: iCalendar Google Calendar Yahoo! Calendar Windows Live Calendar Los Altos Community Center 97 Hillview Ave. Los Altos, CA 94022 Categories: Adults Lecture Physical Sciences Teens (13-18)