Frost

Frost is a material type introduced in . Frost materials contain the essence of, and are colored aqua.

Design
Frost materials are represented by aqua blue jewels with what seem to be small, white, ice crystals covering them. They have an Elemental material structure. In Kingdom Hearts 358/2 Days, they are purple.

A "frost" is a cover of minute ice crystals on an object, reflecting the apparent frost covering the material, as well as the "essence of ice" the material contains.

Kingdom Hearts

 * Frost Shard: Blue Rhapsody (12%), White Mushroom (100%), Bambi (40%/60%)
 * Frost Gem: Sea Neon (4%), Sheltering Zone (8%), White Mushroom (10%/40%), Bambi (30%)

Kingdom Hearts Final Mix introduced the Frost Stone, dropped only by the Grand Ghost.

Kingdom Hearts II

 * Frost Shard: Hook Bat (6%), Lance Soldier (10%)
 * Frost Stone: Aeroplane (8%), Hot Rod (12%)
 * Frost Gem: Fortuneteller (8%), Icy Cube (4%)
 * Frost Crystal: Living Bone (12%)

Kingdom Hearts 358/2 Days

 * Frost Shard: Skater Bomb (Mission 42), Bubble Beat (Mission 58), Large Armor (Missions 21, 26, 30, 34), Icy Cube (Mission 49), Snowy Crystal (Missions 45, 49, 52), Ice Cannon (Mission 46), Avalanche (Mission 60)
 * Frost Gem: Blizzard Plant (Missions 51, 57), Skater Bomb (Missions 52, 54), Snowy Crystal (Mission 62), Ice Cannon (Mission 61), Avalanche (Mission 60)
 * Frost Crystal: Dire Plant (Mission 74), Bubble Beat (Mission 76), Icy Cube (Mission 83), Snowy Crystal (Missions 79, 83)

Kingdom Hearts III

 * Frost Shard: Winterhorn (16%), Arendelle
 * Frost Stone: Winterhorn (8%), Frost Serpent (Wings) (40%), Sea Sprite (Blue) (12%)
 * Frost Gem: Frost Serpent (Wings) (40%), Sea Sprite (Blue) (6%), Arendelle
 * Frost Crystal: Frost Serpent (30%)

Kingdom Hearts II Final Mix

 * Frost Shard: Chest at the Ridge; chest at the Cornerstone Hill.
 * Frost Stone: Chest at the Waterway.
 * Frost Gem: Chest at the Elephant Graveyard.
 * Frost Crystal: Chest at the Cavern of Remembrance: Depths; chest at the Canyon.

Kingdom Hearts 358/2 Days

 * Frost Shard: Bridge in Mission 22, Entrance Hall Upper Level and West Wing in Mission 27, Courtyard and East Wing in Mission 28, Undercroft and West Wing in Mission 29, West Hall in Mission 31, east island and southwestern cliff of the main island in Mission 60; talk Xaldin on Day 73 to exchange a Blazing Shard for one.
 * Frost Gem: Town Square in Mission 52, hole in the rocky cliff west of the main island in Mission 53, hole on the southwestern island in Mission 58, Suspension Bridge in Mission 66; get all the balloons on Mission 45 and talk to Demyx twice on Day 172.
 * Frost Crystal: Southwest island in Mission 76.

Kingdom Hearts 358/2 Days

 * Frost Shard: Clear Bonus for Missions 14, 17, 19, 23, 24, 28, 30, 31, 33, and 35; Random Bonus for Missions 22, 27, 28, 29, 31, and 35.
 * Frost Gem: Clear Bonus for Mission 54; Random Bonus for Missions 52, 54, and 70.
 * Frost Crystal: Clear Bonus for Missions 75, 79, and 81; Random Bonus for Missions 76, 77, 78, and 86.

Kingdom Hearts III

 * Frost Shard: Frost Shard x3 is one of the possible Prize Postcard rewards.
 * Frost Stone: Frost Stone x2 is one of the possible Prize Postcard rewards.

Kingdom Hearts
In Kingdom Hearts, Frost materials are used to synthesize the following items:
 * Elixir (2 Frost Shards)
 * Mega Potion (1 Frost Gem)
 * Mega-Ether (3 Frost Gems)
 * Energy Bangle (1 Frost Shard)
 * Magic Armlet (3 Frost Shards)
 * Rune Armlet (2 Frost Gems)
 * Three Stars (3 Frost Shards)
 * Ribbon (5 Frost Gems)

In Kingdom Hearts Final Mix, Frost materials are used to synthesize the following items:
 * Mega-Ether (1 Frost Shard)
 * AP Up (2 Frost Gems)
 * Magic Armlet (3 Frost Shards)
 * Guard Earring (1 Frost Shard)
 * Rune Armlet (3 Frost Gems)
 * Moogle Badge (1 Frost Stone)
 * Atlas Armlet (5 Frost Shards)
 * Crystal Crown (3 Frost Stones)
 * Ribbon (5 Frost Gems)
 * (3 Frost Stones)

Kingdom Hearts II
Frost materials are used to synthesize the following items:
 * (1 Frost Shard)
 * (1 Frost Shard)
 * (3 Frost Crystals)
 * (3 Frost Crystals)
 * (1 Frost Shard, 1 Frost Stone)
 * (1 Frost Shard, 1 Frost Stone)
 * (1 Frost Stone)
 * (1 Frost Stone)
 * (1 Frost Gem)
 * (1 Frost Gem)

Kingdom Hearts 358/2 Days
Frost materials are used to synthesize the following panels:
 * (2 Frost Shards)
 * (2 Frost Gems)
 * (2 Frost Crystals)
 * (3 Frost Shards)
 * (3 Frost Gems, 2 Frost Crystals)

Kingdom Hearts III
Frost materials are used to synthesize the following items:
 * (2 Frost Gems)
 * (2 Frost Crystals)
 * (2 Frost Crystals)
 * (1 Frost Crystal)
 * (1 Frost Crystal)
 * (2 Frost Gems)
 * (2 Frost Stones, 5 Frost Shards)
 * (2 Frost Stones, 5 Frost Shards)
 * (2 Frost Gems, 5 Frost Stones)
 * (2 Frost Gems, 5 Frost Stones)
 * (3 Frost Stones)
 * (2 Frost Gems, 3 Frost Stones, 5 Frost Shards)

Frost materials are used to forge the following Keychains:
 * LV5, 6, 8 to 10 (3 Frost Stones, 3 Frost Gems, 1 Frost Crystal total)

Notes and references
Glacial Cyanit