Head First  

Speak to Gritstone at -220,-437,3615 Copy inside the Caverns of Living Stone in Eastern Wastes.

1. Return to where you found Phenocryst's Mindstone. ( 751, -457, 3747 ) Copy
2. Click the sediment to receive Phenocryst's Mindstone. Examine it and choose to hold it in your hands.
3. Click on a pile of gemstones at 538, -491, 3913 Copy in the quarry to receive Phenocryst's first missing part.
• Also reported at 498, -494, 4000 Copy
4. Click on a pile of gemstones at 833, -466, 3868 Copy by the Shrinking Pond to receive Phenocryst's second missing part.
5. Click on a pile of gemstones at 278, -454, 3798 Copy in the Caverns of Living Stone to receive Phenocryst's third missing part.
• This piece is difficult to see, it's half lodged behind a rock. It has also been reported at 359, -459, 3807 Copy and 380, -458, 3831 Copy and 274, -459, 3841 Copy .
6. Click on a pile of gemstones at 355, -438, 3629 Copy in the Caverns of Living Stone to receive Phenocryst's fourth missing part.
7. Go to the Protolith Room and click on a rock at 413, -434, 3572 Copy .
8. Speak to Phenocryst to complete the quest and to open up his next quest, Menhir or There.

After completing this quest you can return to Gritstone for his new quest, Removing the Growths.