Perseverance has collected samples of five rocks, performed detailed analysis on seven others, and zapped an additional 83 ...

In general, mineral particles are small, having formed within confined areas such as lava flows or between grains of sediments. Large crystals found in geodes and other rocks are relatively rare.

It's called the Gem & Mineral Show and will be held at The Pavilion at 1602 Sioux Drive in Marion from 10 a.m. - 5 p.m. on ...