Boltwoodite - New Method Mine, Amboy area, Bristol Mountains, San Bernardino County, California, USA

(K,Na)(UO₂)(SiO₃OH) · 1.5H₂O

A personal collection piece and formally in the collection of Jack Nieburger, a great specimen of Boltwoodite from the New Method Mine in San Bernardino County, California, USA. This specimen displays exceptionally well with fine needle-like crystals of Boltwoodite on a bed of Calcite.

Approx. specimen size: 75mm x 60mm x 50mm

Approx. specimen activity with a SE International Ranger EXP: 18500 cpm