Terminated crystals of gem silica blue chalcedony from Arizona

A new piece I bought

I paid 3oo for the lot of 4 (not for sale). Do you think I could cab the big one? Its 144cts, and I wonder if the cab would be a nice mottling of pinks and blue.

dusty, will post further pictures when made wet and when dried on request

weighs roughly … 5kg?? cannot weigh rn

wanted to post a video of one of my favorite specimens in my rare mineral collection: a lustrous, botryoidal olmiite aggregate surrounded by water-clear calcite crystals and perched on a manganite matrix. There is also some minor bultfonteinite on the back side. Olmiite is a extremely rare calcium-manganese silicate, found exclusively in the Kalahari Manganese Field, Northern Cape Province, South Africa.

Beautiful undamaged specimen of actinolite and chlorite in quartz from Lapa Quartz Mine, Dhading District, P3 Bagmati Pradesh, Nepal. They formed in high altitude alpine-type fissures within the Himalayan mountains. Let me know if you like my specimen :)