Lightning Cluster

Lightning Cluster is a crystal.

Source
Lightning Clusters can be purchased or gathered.

Vendors
Lightning Clusters can be purchased for 1 from the following vendors:
 * Spoils Collector - The Pillars, The Lavender Beds, Mist, The Goblet, Shirogane

Gathering
Lightning Clusters can be gathered by botanists and miners.

Botanist
 * Logging
 * Level 50 node - ??, Mor Dhona
 * Level 60 node - ??, The Sea of Clouds

Miner
 * Quarrying
 * Level 50 node - ??, Mor Dhona
 * Level 60 node - Red Rim, Coerthas Western Highlands
 * Level 60 node - Voor Sian Siran, The Sea of Clouds

Uses
Lightning Clusters are used in crafting the following items: