Large Radiant Shard

Large Radiant Shard is a trade good that is of importance in many mid-high level enchanting recipes.

Source
This shard is obtained by disenchanting item level 46 to 50 items. Shards are rare from items, and guaranteed from  items. items always yield multiple shards.

As a quest objective

 * Scrying Materials

Enchanting

 * Enchant Shield - Frost Resistance
 * Enchant 2H Weapon - Greater Impact
 * Enchant Chest - Stats
 * Enchant Weapon - Greater Striking
 * Enchant Gloves - Minor Haste
 * Riding Skill