(WSB photos)

Though it’s truly a gem of a show, not everything at the West Seattle Rock Club‘s 50th annual show is sparkly:

That display near the entrance to the show at the Alki Masonic Center honors the 1975 designation of petrified wood as our state’s official gem. It’s one of many display cases showing a variety of treasures from the earth:

The displays are from collectors and enthusiasts of all ages. And the show is for everyone – admission is free, though you have the opportunity to spend a little or a lot, with vendors around the room as well as silent auctions toward the back – one geared for adults, one aimed at kids:

Participants are also ready to show and explain how they work with rocks and gems. Admission and parking are free; the show continues 10 am-5 pm Sunday at 4736 40th SW.