Lava

Source: npc/quests/quests_louyang.txt

1. In Louyang revolution chain, progress with Sun Mao.
2. At full 8-member party stage, he distributes chemistry materials.
3. One of them is Cold Magma (shown as Lava in item DB).
4. Grant line: getitem 7096,8.
5. Later, one unit is consumed by Hao Chenryu during Make Gunpowder..