11iddbis ((GMELINITE shells with ANALCIME)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 2.2 x 2 x 1.5 cm, Thumbnail | |
Looking at mindat.org I found out that many of the species, especially zeolites, are found in vesicles within the basalt at Boron. These are best collected as thumbnails. Jim Minette purchased the Carnahan collection which contained thumbnails of these species and combinations of species from Boron. This one has two vesicles with larger tanish Analcime and hollow casts or shells of Gmelinite. A rather odd specimen. ex Jim Minette collection, ex Carnahan. |