default_gold_lump.png

default_mineral_gold.png

default_diamond.png

default_tool_diamondpick.png

default_tool_diamondsword.png

default_tool_diamondshovel.png

default_copper_block.png

default_bronze_block.png

default_gold_block.png

Glass breaking sounds (CC BY 3.0):

1: http://www.freesound.org/people/cmusounddesign/sounds/71947/