Shimmering

Shimmering, also translated as "Shiny", is a material type available in Kingdom Hearts and Kingdom Hearts Birth by Sleep. Shimmering materials contain the essence of fire, ice, and thunder combined, and they can be used during Command Meld to attach abilities that modify damage due to elemental attributes.

Design
A Shimmering Crystal is represented by a jewel with an Elemental material structure. All four pieces of the jewel are a mixture of cyan, red, and lavender, though lavender is the more prominent color, and the star-shaped jewel has white sparkles near its center.

The material's name references the sparkles present on it, as "shimmering" means "produces sparks under light."

Kingdom Hearts

 * Shiny Crystal: Wizard (2%)

Kingdom Hearts Final Mix introduced the Shiny Stone, dropped only by the Jet Balloon.

Kingdom Hearts Birth by Sleep

 * Shimmering Crystal:Archraven (40%)-(50%), Blobmob (50%), Blue Sea Salt (20%)-(25%)-(50%), Red Hot Chili (20%)-(45%)-(25%)-(45%), Spiderchest (30%)-(40%), Yellow Mustard (25%)-(50%)

Kingdom Hearts Birth by Sleep

 * Terra: chest at Merlin's House, chest at Peter's Hideout
 * Ventus: chest at the Deep Woods, chest at the Raceway
 * Aqua: chest at the Summit, chest at the Underground Waterway, chest at the Vault, chest at the Mysterious Tower

Kingdom Hearts
Shiny materials are used to synthesize the following items:
 * Three Stars (1 Shiny Crystal)
 * Megalixir (1 Shiny Crystal)
 * Atlas Armlet (2 Shiny Crystal)
 * Crystal Crown (3 Shiny Crystal)

Kingdom Hearts Final Mix
Shiny materials are used to synthesize the following items:
 * Elixir (1 Shiny Crystal)
 * Three Stars (1 Shiny Crystal)
 * Crystal Crown (1 Shiny Crystal)
 * EXP Bracelet (1 Shiny Stone)
 * Seven Elements (5 Shiny Stone)

Kingdom Hearts Birth by Sleep
Shimmering materials are used to add the following abilities:
 * Fire Boost
 * Fire Screen
 * Blizzard Boost
 * Blizzard Screen
 * Thunder Boost
 * Thunder Screen
 * Cure Boost
 * Dark Screen

Notes and References
Leucht