Heavy minerals at 2-4 mm fraction. Note: Keliphitic rim around both lilac
and orange garnets, and unidentified fully-framed grains
(Courtesy of Geol. Survey of Finland)

High-quality, high-yield indicator minerals can easily be liberated from kimberlite samples.

Over 75% of the indicator minerals are liberated from the rock compound along the grain boundaries, and they are largely preserved as morphologically intact particles.

Xenoliths recovered from a kimberlite
sample at 4-8mm fraction
(Courtesy of Geol. Survey of Finland)

Even well-preserved xenoliths measuring 4-8 mm can be liberated from kimberlite samples without problems and at low cost thanks to selective fragmentation with the selFrag technology.

The ability to selectively liberate xenoliths of this size is highly important for the investigation of kimberlite: until now, this task was impossible with mechanical crushers.

Ilmenite and garnets, mostly unbroken, recovered with a liberation size of
1-2mm (Courtesy of Geol. Survey of Finland)