Masterpieces of the Mineral World Earrings and easy to clean

and easy to clean

tourmaline from Afghanistan

each case includes a scientific explanation and ideas for experiments to enhance readers' STEM knowledge

and a geological oddity

Masterpieces of the Mineral World Earrings and easy to cleanThe HMNS collection of natural mineral crystals is the finest in the world. Now, these treasures are featured in resplendent photographs that amaze both the connoisseur of beauty and the student of natural history. Co written by curator and HMNS president, Joel Bartsch. The collection of natural mineral crystals housed at the Houston Museum of Natural Science is the finest and best known in the world. Now the treasures of this singular collection are