Large Resource Deposits are large quantities of certain resources. They can only be drilled using the Prawn Suit Drill Arm.
The following materials can be found as Large Resource Deposits:
|Copper Ore||8 - 16|
|Gold||9 - 18|
|Kyanite||0 - 12 (Short)
0 - 22 (Tall)
|Lead||8 - 16|
|Lithium||8 - 16|
|Magnetite||7 - 14|
|Nickel Ore||8 - 16|
|Quartz||7 - 14|
|Salt Deposit||7 - 14|
|Silver Ore||9 - 18|
|Titanium||8 - 16|
|Uraninite Crystal||7 - 14|
Spoiler alert: The following section contains story related material.
- Kyanite is one of the few resources in Subnautica that is not guaranteed to eject smaller pieces when drilling chunks from a large node. This is not a bug.
- There is a 0.000000471431432% chance for a large Kyanite deposit to yield 22 Kyanite pieces.
- There are two Large Resource Deposit models that currently do not appear in Subnautica, the large Ruby, and Crystalline Sulfur deposits. It is unknown if any of these will ever appear in Subnautica. 
- There used to be Large Resource Deposits of Diamonds.