Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 4'' x 3'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 4.5'' x 2.5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 3'' x 3'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 8.5'' x 6.5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 6.5'' x 5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 4.5'' x 4'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.5'' x 2.5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 3.5'' x 2.5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 3.5'' x 3'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.5'' x 2'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.75'' x 2'' |
 Polished thunderegg. Richardson's Ranch, Pony Butte. Size: 3'' x 4'' |
  Polished slab (frontside and backside) cut from thunderegg above. Richardson's Ranch, Pony Butte. Size: 3'' x 4'' |
Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 5.5'' x 3.5'' |
Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 5'' x 4'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.5'' x 2'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.25'' x 2'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 3'' x 2.25'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 1.75'' x 1.75'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2.5'' x 1.75'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2'' x 1.75'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 1.75'' x 1.5'' |
 Cut and polished thunderegg. Richardson's Ranch, Pony Butte. Size: 2'' x 1.75'' |
