1950s Children's TV Sci-Fi Where the Villain is an Arrangement of Crystals That Achieved Consciousness

I am trying to locate the name of a serialized children’s sci-fi program.

My most vivid memory is the ending. The bad guy turned out to be a half dozen crystals whose positions relative to each other allowed it to achieve consciousness. The hero "killed" the villain by just moving one of the crystals. I don’t remember if this plot/ending was for the whole series, or just one episode of the series.

Vague recollections (that might be wrong):

• It was a 10-minute segment of a half hour children’s program.
• It might have had something to do with Crusader Rabbit, Sheriff John or Engineer Bill.
• It aired on a local Los Angeles TV station in the 1950s.
• It might have been stop motion animation.
• It was black and white.
• Low production value.