Collecting gemstones in Terraria is not only a rewarding activity for crafting but also essential for several utility items and decorative purposes. Here’s a guide on how to efficiently collect gemstones and their various uses in the game.

Where to Find Gemstones

Gemstones can be found in various places throughout the Terraria world:

1. Underground Mining:
   • Caves and Caverns: Gems are often embedded in the walls of underground caves. They can appear as small clusters of shiny colored spots that you can mine.
   • Mining with a Spelunker Potion: This potion highlights ores, chests, and gems, making it easier to spot and collect them during mining expeditions.
2. Extractinator:
   • Using Silt/Slush/Fossil: Place these blocks into an Extractinator to have a chance of extracting gems among other valuable items. This is a great way to get a large number of gems, especially if you have accumulated a lot of silt or slush.
3. Fishing:
   • Crates: Open crates obtained from fishing. These can contain various resources, including gems.

Types of Gemstones

Terraria features several types of gemstones, each with its own color and uses:

• Amethyst (purple)
• Topaz (yellow)
• Sapphire (blue)
• Emerald (green)
• Ruby (red)
• Diamond (clear)
• Amber (obtained from the Extractinator using silt, slush, or desert fossil)

Uses of Gemstones

1. Crafting:
   • Hooks: Each gem type can be used to craft a specific colored hook, which helps with mobility by allowing you to grapple onto surfaces.
   • Stained Glass: Combine glass with any gemstone to create beautifully colored stained glass for decoration.
   • Robes: Combine with silk to craft colored robes, which are useful for magic-users due to their mana bonuses.
2. Weapons and Tools:
   • Gem Staffs: Each type of gem can be used to craft a magical staff that corresponds to the gem’s color. These staffs are useful early-game magic weapons.
3. Phaseblades and Phasesabers:
   • Phaseblades: Early-game lightsabers that can be crafted using 10 of any gem plus Meteorite Bars. They can be upgraded to Phasesabers in Hardmode with additional crystals and Meteorite Bars.
4. Building and Decorating:
   • Block and Brick: Gems can be crafted into blocks and bricks for building purposes, offering vibrant aesthetic choices for construction.
5. Large Gems:
   • Display: Large versions of each gem can be crafted and placed as decoration or used in building for dramatic visual
     effects.