Astrophyllite and arfvedsonite differ in their chemical composition, shimmer, and price: Chemical composition Astrophyllite is a hydrous...

“Tiffany stone" is a trade name used for a  gemstone  often patterned with swirls or sections of purple, white, black, yellow, and...

Thomsonite is a rare mineral in the zeolite family — the rarest, to be exact! It typically occurs in white, beige, pastel yellows,...