# Blue Crystal

**Item ID**: 4483
**Type**: Resource
**Grade**: White
**Weight**: 0.3 LT
**NPC Buy**: 4,920 silver
**NPC Sell**: 1,640 silver
**Marketable**: yes

## Flavor

Material that has been processed and may be used during crafting. It may also be changed to a different form through Alchemy or Processing.


## Usage

Resplendent Boss Weapon Reform Stone II, House Crafting, etc.




## Obtain

Heating (Rough Blue Crystal x5)


## From the Knowledge Book

**Blue Crystal**

Processing Material: Rough Blue Quartz x5

You can obtain Blue Quartz by processing Rough Blue Quartz obtained by mining.

See [Blue Crystal](/knowledge/7805.md) for the full entry.

## Crafted From

1 recipe:

### Recipe 1

Produces 1× **Blue Crystal** for 1,000,000 silver.

Materials:

- 30× [Magical Shard](/item/4918.md)
- 60× [Concentrated Boss Crystal](/item/8904.md)
- 20× [Concentrated Magical Black Stone](/item/16004.md)
- 100× [Memory Fragment](/item/44195.md)



## Used in Exchanges

Consumed by 10 exchange recipes. Top 4 by quantity:

- [Dragon Slayer Kerispear Blueprint](/item/9759.md) — ×50 _(Excavation)_
- [Red Ashes of Darkness](/item/9769.md) — ×100
- [Wildspark](/item/9799.md) — ×50
- [Inverted Energy](/item/9770.md) — ×25


## See Also

- [Blue Crystal](/npc/10152.md) (npc)