5533 Robertsite, Montgomeryite, Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA

October 5, 2019 Pendleton North and Central Americas South Dakota United States

Type Locality for robertsite. Ex John Lewis collection.

Tags: Montgomeryite Robertsite

Arizona North and Central Americas United States

1034 Erionite-K, Heulandite, Malpais Hill, Dudleyville, Pinal Co., Arizona, USA

July 25, 2021

5032 Anatase, Bonetto Quarry, Ror, Piedmont, Italy

September 29, 2019

Australasia Australia Queensland

4371 Calcite, Biggenden, Queensland

October 5, 2019

Australasia Australia Victoria

1399 Quartz (Smoky with Bubble), Mooralla, Victoria

September 22, 2019