Compose Material

★★

Deep Marrow Rock Salt

Deep Marrow Rock Salt is a 2★ material in Honkai: Star Rail — see how to get it, its use, and related items right below on this page.

2★Compose Material

3How to obtain

Deep Marrow Rock Salt is a material ★2 in Honkai: Star Rail. This item is not currently used to level up any character or Light Cone. Obtainable from 3 different sources in-game.

Last updated: 30/07/2026

The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.

Description

Tier 2 Synthesis Material

Lore

Salt crystals unearthed from the depths of the rift valley, revered by the farmers who toil on the land. Many keep one of these crystals in their homes, treasuring it as the "bared spine marrow of Georios," a generous gift to the farmers. When reclaiming barren land, just a small sprinkling of this rock salt is enough to transform the barren soil into fertile ground, breathing life back into the earth. "Non-organic, non-organic, non-organic, non-organic, non-organic fertilizer is the best!"

How to obtain

Enemies such as Furiae Warriors drop "Strife Ruins Castrum Kremnos"
Destructible objects in Amphoreus
Calyx (Golden)

Stats

Rarity	★★
Type	Compose Material
Stack limit	99,999

Official names in every language

Tiếng Việt	Muối Đá Tủy Sâu
English	Deep Marrow Rock Salt
日本語	神髄岩塩
한국어	심수 암염
繁體中文	深髓岩鹽
简体中文	深髓岩盐

Where to use it / Related tools

Material Planner →

Deep Marrow Rock Salt is an upgrade material — check the Material Planner to see how much you need for the character you're building.

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← All items Material Planner →

FAQ

What is Deep Marrow Rock Salt?

Tier 2 Synthesis Material

Where do you get Deep Marrow Rock Salt?

Sources for Deep Marrow Rock Salt: Enemies such as Furiae Warriors drop "Strife Ruins Castrum Kremnos" · Destructible objects in Amphoreus · Calyx (Golden). See the “How to obtain” section above for details on each source.

What type of item is Deep Marrow Rock Salt?

Deep Marrow Rock Salt is a 2★ material in Honkai: Star Rail, in the “Compose Material” category.

What is Deep Marrow Rock Salt used for?

Deep Marrow Rock Salt currently isn't listed as required by any character ascension, Light Cone ascension, or crafting recipe in official data.

Understand the mechanics behind this 4

Trailblaze Power guide: best ways to spend it, Fuel, Jade refreshes, and your daily farming route→ Efficient Material Farming in Honkai: Star Rail: Calyx, Stagnant Shadow, Echo of War, and a Weekly Route→ Assignments Guide: Who to Send Where for Max Passive Materials and Credits→ How to Farm Credits in Honkai: Star Rail (Never Go Broke Leveling Traces & Relics)→