Here's where to donate or recycle your solar eclipse glasses

The solar eclipse has come and gone in Arizona, with glasses and solar viewers to spare.

On Monday, Arizona residents were able to witness a partial solar eclipse that started at 10:08 a.m., peaked at 11:20 a.m. and ended at 12:35 p.m.

A partial eclipse is when the moon obscures part of the sun, but not in its entirety. Some of the nation saw a total solar eclipse, when the moon is encircled by a ring of light, or a corona, from the sun.

When the sun returns to being fully unobstructed, there is little use for the solar glasses that get handed out during eclipses.

Can solar eclipse glasses be reused?

Yes, solar eclipse glasses can be reused, so long as they are in good condition with no visible wear, such as holes or scratches. The American Astronomical Society also advises using glasses or viewers that comply with the ISO 12312-2 safety standard. Otherwise, you can watch every solar eclipse with the same glasses forever.

Where can I donate solar eclipse glasses?

Several national organizations accept used solar eclipse glasses to redistribute to other locations so they can be reused for the next round of solar eclipses. Warby Parker partnered with Astronomers Without Borders, and you can bring in your used solar glasses at any of five Warby Parker locations in Arizona, according to the group.

Glasses can also be shipped to Eclipse Glasses USA, a program that gets eclipse glasses to countries where resources are limited. These glasses should be either very lightly used or unused and should be mailed by Aug. 1, according to the organization’s website. The address is Eclipse Glasses USA, LLC PO Box 50571 Provo, Utah 84605.

Can I recycle solar glasses?

Yes, if the frames are made of cardboard. The lenses are usually made with nonbiodegradable metal-coated black polymer, so they must be removed before recycling.

C.A. Bridges, Greg Giesen and Marina Johnson contributed to this story.

This article originally appeared on Arizona Republic: Donate or recycle your solar eclipse glasses here