- Miniature, 4.1 x 3.7 x 2.8 cm
- Blue Grotto prospect, La Sal, La Sal District, San Juan Co., Utah, USA
An aesthetic and showy cluster of intergrown, bladed rosettes of scintillating, azure-blue azurite crystals from the well-known finds at the Blue Grotto Mine, La Sal, Utah. This fine ball has excellent form and only a very small contact on the back. Ex. Robert Whitmore Collection.