Ruri no Houseki
瑠璃の宝石 · Introduction to Mineralogy · Ruri Rocks
Updated March 2026
Ruri no Houseki is an ongoing Adventure, Comedy, Slice of Life manga (2020). Read all 33 chapters online free on XOmanga.
Mineral collecting is a modern-day treasure hunt! Ruri, a high school girl who loves jewelry and accessories, ventures into the world of mineral collecting in mountains, rivers, and caves. The first volume features numerous minerals, including quartz, garnet, pyrite, gold sand, and fluorite. The collection scenes are full of fascinating scenes using specialized tools such as a panning dish, hammer, and topographical maps. This is an authentic science adventure based on the solid knowledge of the author, who is trained in mineralogy!
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Chapters
- Chapter 1 — First Mineral Collection
- Chapter 2 — The Stone Hideaway
- Chapter 3 — Gold's Worth
- Chapter 4 — The Riverbed Piggy Bank
- Chapter 5 — Nagi-San's Lab
- Chapter 6 — Stars Left Behind
- Chapter 6.5 — Bonus
- Chapter 7 — Mountains in the Palm
- Chapter 8 — Sifting Through the Sand
- Chapter 9 — Beyond the Glow
- Chapter 10 — Seen and Unseen Worlds
- Chapter 11 — Engraved on Paper
- Chapter 12 — The Blue Beckons
- Chapter 12.5 — Bonus
- Chapter 13 — The Recycling Plant by the Shore
- Chapter 14 — Elegy in Dusk-Hued Amber
- Chapter 15 — A 1.9-Million-Ton Time Capsule
- Chapter 15.5 — Extra: Nagi-san's Grand Clean-Up
- Chapter 16 — The Abandoned Track of One Sentence
- Chapter 17 — Stained Glass Illuminating the Tunnel Road
- Chapter 18 — The Sapphire Cradle
- Chapter 18.5 — Bonus
- Chapter 19 — A Detour? A Side Path? A New Discovery!
- Chapter 20 — Water, Change, and Sedimentation
- Chapter 21 — Look Up, Peer In, Search, and Onward!
- Chapter 22 — The Convergence Point of Past and Future
- Chapter 23 — How to Put Away the World You Picked Up
- Chapter 23.1 — So you really can collect stuff like this, huh
- Chapter 23.2 — Washing stones
- Chapter 23.5 — Bonus
- Chapter 24 — Unearthed Memories
- Chapter 25 — The Extreme Inside a Beaker
- Chapter 26 — What Makes Stones Shine
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About Ruri no Houseki
- Where can I read Ruri no Houseki?
- You can read all 33 chapters of Ruri no Houseki online free on XOmanga.
- Is Ruri no Houseki finished?
- Ruri no Houseki is currently ongoing.
- How many chapters does Ruri no Houseki have?
- Ruri no Houseki has 33 chapters available to read on XOmanga.
- When was Ruri no Houseki last updated?
- Ruri no Houseki was last updated in March 2026.