Rocks from Greenland, can you help identify?

[kblackphoto]

its much harder to id rocks so not having much luck on google.

 

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[Madmox]

It looks like granite and quartz or marble

 

[stdenis_jd]

check #s 2, 3 & 4 in sunlight vs. dim indoor lighting...Greenland has tenebrescent rocks such as hackmanite & tugtupite, those look like possibilities although unlikely. if you have a long wave and/or short wave UV light, see if any of them fluoresce

EDIT: the white ones are also possibly cryolite. Can you check the hardness? See if a steel knife will leave a scratch/gouge in the rock, then try copper (not a penny bc they aren't really copper anymore )

 

[stdenis_jd]

Madmox is most likely right, but worth checking. First one (yellowish) is quartz and what looks to be biotite mica