Perfect Geomarrow Crystal Item Details Item Type Mission Item Inventory Category Missions RarityDescription A fist-sized geomarrow crystal, reflecting an indigo luster.
That supervisor Antonia probably knows how much it’s worth. How to Obtain Collected from the ore vein in the Great Mine during Antonia’s hidden mission

Honkai Star Rail Perfect Geomarrow Crystal Guide: Introduction

In the rugged expanse of Boulder Town, deep within the bustling world of Honkai: Star Rail, lies a hidden gem both figuratively and literally—the Perfect Geomarrow Crystal. This mysterious 3-star mission item gleams with an indigo luster, its fist-sized form hinting at more than just mineral value. Players who manage to unearth this treasure aren’t just stumbling upon a rare item—they’re unlocking a secret tied to the town’s underground economy. And at the heart of it all is Supervisor Antonia, a sharp-eyed figure who seems to know far more about this mineral than she lets on.

To even begin the journey toward acquiring the Honkai Star Rail Perfect Geomarrow Crystal, you’ll need to secure the proper tool: the 80% New Thermal Mining Pickaxe. This isn’t your standard equipment—it’s part of a secret mission tied to Antonia herself, who can be found near the Goethe Grand Hotel. Unlike typical quests, this task doesn’t announce itself loudly; instead, it rewards curious players who go the extra mile to uncover hidden mechanics and discreet opportunities.

Once equipped with the pickaxe, your next destination is the Great Mine, where a geomarrow vein holds the coveted crystal. But success hinges not just on showing up—it depends on precision. When prompted to mine the vein, you must carefully choose the second dialogue option, which corresponds to a “medium hit.” This is the only way to extract the Honkai Star Rail Perfect Geomarrow Crystal intact. Too light, and you’ll need to try again. Too heavy, and the pickaxe shatters, forcing you to fork over 500 Credits to Antonia for a replacement.

Successfully retrieving the crystal opens the door to a valuable exchange. Returning to Antonia—now located near the Underground Shop—allows you to sell the crystal for 10,000 Credits and 20 Shields, though some accounts mention a slightly lower credit return of 8,000. Either way, the reward is well worth the effort, especially considering the secrecy and finesse required to complete the task. This hidden mission not only delivers solid rewards but also showcases the clever depth and world-building that Honkai: Star Rail excels at.

Honkai Star Rail Perfect Geomarrow Crystal Guide: How to Obtain

To obtain the Honkai Star Rail Perfect Geomarrow Crystal, you first need to acquire an 80% New Thermal Mining Pickaxe from Antonia. This pickaxe is obtained as part of a secret mission from Antonia, who can be found near the Goethe Grand Hotel in Boulder Town.


Once you have the pickaxe, head to the Great Mine and locate the geomarrow vein. When you’re near the vein, you’ll have the option to “Investigate”, which begins the mining process.

During mining, you’ll be presented with three options for how hard to strike the vein. To successfully extract the Honkai Star Rail Perfect Geomarrow Crystal, you must select and confirm the “medium hit” option. Choosing the “light hit” yields nothing but allows another attempt.


However, selecting the “heavy hit” will break your 80% New Thermal Mining Pickaxe, forcing you to purchase another from Antonia for 500 Credits.

To sum it up, the steps to obtain the Honkai Star Rail Perfect Geomarrow Crystal are:

  • Obtain the 80% New Thermal Mining Pickaxe from Antonia in Boulder Town as part of a secret mission.
  • Travel to the Great Mine and find the geomarrow vein.
  • Interact with the vein and choose the “medium hit” option or the second dialogue option to successfully mine the Perfect Geomarrow Crystal.
  • Avoid the “heavy hit” or the last dialogue option, as this will break your pickaxe.

Honkai Star Rail Perfect Geomarrow Crystal Guide: How to Use

You can use the Honkai Star Rail Perfect Geomarrow Crystal by exchanging it with Antonia in Boulder Town. Antonia can be found near the Underground Shop or near the Goethe Grand Hotel.

When you give the Honkai Star Rail Perfect Geomarrow Crystal to Antonia, you will receive 10,000 Credits and 20 Shields.


There is some variability in the exact reward, as you may receive 8,000 or 10,000 Credits, but the primary use of the crystal remains the same: to sell or exchange it with Antonia for Credits and Shields.

Honkai Star Rail Perfect Geomarrow Crystal Guide: Lore and Story

The Honkai Star Rail Perfect Geomarrow Crystal is a 3-star mission item. It is described as a fist-sized crystal with an indigo luster, and its description hints that Supervisor Antonia in Boulder Town knows its value. This suggests that the crystal is not a common item and might hold some significance within the game’s lore.


The process of obtaining the Honkai Star Rail Perfect Geomarrow Crystal is tied to a secret mission given by Antonia, who can be found near the Goethe Grand Hotel in Boulder Town. This implies a hidden questline or task that players need to uncover to acquire the crystal. The first step in this process is obtaining the 80% New Thermal Mining Pickaxe from Antonia.

After acquiring the pickaxe, the player needs to venture into the Great Mine to a specific geomarrow vein. The act of “Investigating” the vein initiates a mining sequence where the player must choose the correct approach to extract the crystal.


The game presents dialogue choices during this process, and selecting the second dialogue option, which corresponds to using a “medium hit”, is crucial for successfully obtaining the Honkai Star Rail Perfect Geomarrow Crystal. This element of risk and choice adds a narrative flavor to the acquisition, as choosing the “heavy hit” or the last dialogue option will break the pickaxe, incurring a cost of 500 Credits to replace it with another one from Antonia. Conversely, a “light hit” will simply allow the player to try again.

The “usage” of the Honkai Star Rail Perfect Geomarrow Crystal is also narratively linked to Antonia. After successfully mining the crystal, the player must return to Antonia in Boulder Town, where she can be found near the Underground Shop. Here, the player can exchange the crystal with Antonia. The reward for this exchange is 20 Shields and either 8,000 or 10,000 Credits, or stated elsewhere as 10,000 Credits and 20 Shields. This exchange solidifies Antonia’s role not only as the quest giver and tool provider but also as the end point for this particular mission item, further suggesting her knowledge of its worth as hinted in the item’s description.

In summary, the lore and story surrounding the Honkai Star Rail Perfect Geomarrow Crystal involve a secret mission from Supervisor Antonia in Boulder Town, requiring a specific mining pickaxe and a careful approach to mining in the Great Mine. The narrative is enhanced by the consequence of breaking the pickaxe if the wrong mining force is used. Finally, the resolution of this mini-narrative arc involves returning to Antonia to exchange the crystal for a reward, reinforcing her connection to this valuable item.

Honkai Star Rail Perfect Geomarrow Crystal Guide: Conclusion

Honkai Star Rail Perfect Geomarrow Crystal stands as a unique 3-star mission item, distinguished by its indigo luster and fist-sized form. Its description subtly hints at its value, with Supervisor Antonia in Boulder Town seemingly possessing an understanding of its importance. This not only elevates the crystal’s worth but also ties it into the game’s deeper lore, making it more than just another collectible item.

To obtain the Honkai Star Rail Perfect Geomarrow Crystal, players must first complete a secret mission that involves Antonia, found near the Goethe Grand Hotel in Boulder Town. The mission begins with acquiring the 80% New Thermal Mining Pickaxe, an essential tool for the next step: heading to the Great Mine. Once there, the player must investigate the geomarrow vein and carefully select the right mining technique. A successful attempt requires choosing the “medium hit” option, highlighting the game’s emphasis on decision-making and the potential consequences of each choice.

The risk element adds depth to the process, as players must avoid selecting the “heavy hit” or the last dialogue option, both of which will break the pickaxe and require a costly replacement from Antonia. This careful balance of risk and reward is a key part of what makes the acquisition of the Honkai Star Rail Perfect Geomarrow Crystal so engaging, encouraging players to approach the task thoughtfully.

Ultimately, the crystal’s primary value lies in its exchange with Antonia. Upon returning to Boulder Town and delivering the crystal to her near the Underground Shop, players are rewarded with 10,000 Credits and 20 Shields. This exchange solidifies Antonia’s pivotal role in this questline, reinforcing the connection between the crystal and its true worth. Whether for the credits, shields, or the satisfaction of completing the mission, the Honkai Star Rail Perfect Geomarrow Crystal serves as both a meaningful narrative artifact and a valuable in-game asset.

For more in depth guides like this Honkai Star Rail Perfect Geomarrow Crystal Guide, visit Theria Games [Honkai: Star Rail].