Kimberlite (rare and rare locale) St. Mockel and Howard Coll.

Zimny Bereg District, Arkhangel'skaja Oblast', Northern Region, Russia
Small Cabinet, 7.8 x 7.0 x 2.2 cm
Start Time: 02/02/2017 6:30:00 pm (CST)
End Time: 02/09/2017 6:31:17 pm (CST)
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Item Description

Diamonds, other species or rocks are EXTREMELY RARE from this much less well-known kimberlite pipe district in northern Russia. The gray kimberlite matrix hosts many starkly contrasting porphyroblasts of an unknown lustrous and translucent gray mineral. VERY RARE material from the locale. Ex St. Mockel and James Howard Collections.

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