The Ore Lava Crystal is a block added by ArmorPlus. It is generated naturally between y-levels 6 to 16 and it spawns infrequently. It drops Lava Crystal when mined. It can only be mined with Diamond-tier pickaxes and higher. It is affected by the Fortune enchantment.
The Ore Lava Crystal can be configured to adjust its spawn rate and whether it will spawn in the Overworld, The Nether or The End.