Mineral Cafe Mineral Muru to Host Special Exhibition in Tokyo's Shinjuku on July 18–19, Featuring a Signing Event for the Reprint of Manga 'The Maid at the Gem Shop'.

First Exhibition in the Kanto Region! Mineral & Cafe Mineral Muru (Itami City, Hyogo Prefecture) will host a special exhibition and sales event at Stella Gallery Shinjuku (7-1-11 Nishi-Shinjuku, Shinjuku-ku, Tokyo) on Saturday, July 18 and Sunday, July 19, 2026.

Beautiful Minerals from Around the World

Under the theme of "Nature's Artwork Crafted Over 4.6 Billion Years," we will exhibit and sell carefully selected mineral specimens, natural stones, gemstones, and fossils from around the globe.

The venue will showcase a unique collection created by nature, including transparent gemstones, vividly colored natural stones, and fossils preserved from tens of millions to hundreds of millions of years ago.

Bringing Nature's Beauty into Daily Life

In recent years, many people have developed an interest in minerals through manga, anime, and games. Whether you're attending your first mineral event or a seasoned enthusiast, everyone is welcome. We'll provide clear and accessible explanations about how minerals form, their unique characteristics, and their individual charm—making it enjoyable even for first-time visitors.

From Popular Fluorite to Rare and Niche Minerals

Coffee Roasted with Volcanic Rock from Mount Fuji

Savor Coffee and Tea Like Gems—Perfect as Gifts

We will also sell the popular 'Drip Gem Coffee' and 'Gem Tea,' which have sold over 30,000 units at mineral shows and in-store. These are Mineral Cafe's pride—original blends developed through repeated trials, inspired by the imagery of various gemstones. They make excellent summer gifts for family and friends.

A Kaleidoscope That Sparkles Like Gems

An Exciting Gemstone Kaleidoscope Workshop

Additionally, the venue will host the popular hands-on experience program: the 'Gemstone Kaleidoscope Workshop,' where participants can create a kaleidoscope with real gemstones sealed inside.

Craft your one-of-a-kind kaleidoscope and experience the magical world of light created by gemstones. Fee: ¥1,650 (tax included).

Endless Beauty Through Stone Combinations

Ammonite with Unique Expressions

Ammonite: A Miracle Born from an Ancient Sea

Fossils that preserve ancient sea life through tectonic shifts and sedimentation—these are not just remnants of Earth's history, but also rare gemstones formed by nature's miraculous coincidences. The ability to feel both the history of life and the workings of Earth in a single specimen is the unique charm of ammonite.

One-of-a-Kind Treasures

Even within the same type of gemstone, variations in color intensity, inclusions, and cut result in unique brilliance. The joy of choosing a stone purely by intuition is a special pleasure of loose gemstones.

We also offer full customization—upon request, Mineral Muru can craft rings, necklaces, or earrings from your chosen mineral.

Tanzanite with Beautiful Blue-Purple Hues

Signing Event by Yamase Chika, Creator of 'The Maid at the Gem Shop'

Yamase Chika's Signing Event!

July 19, 2026 (Sunday), 1:00 PM–

To celebrate the reprint of 'The Maid at the Gem Shop'—a manga supervised by Mineral & Cafe Mineral Muru—we will host a signing event.

This event requires prior registration. Twenty lucky attendees will be selected by lottery.

Selected participants will purchase Volume 1 of 'The Maid at the Gem Shop' at the venue and receive a live autograph from Yamase Chika.

Apply here: https://forms.gle/JHjiBeqzdK7DmkYx7

Let Earth's Story Be Close to You.

Custom Jewelry Handcrafted by Traditional Artisans

This event is perfect not only for mineral enthusiasts but also for those interested in jewelry, art, and interior design.

We invite you to touch real natural stones at the venue and experience their ever-changing beauty as they catch the light.

You may just discover your own 'fated gemstone.'

【Event Details】

Event Name 'Mineral Muru' Tokyo Shinjuku Exhibition

Dates Saturday, July 18, 2026: 12:00–20:00 Sunday, July 19, 2026: 9:30–16:00

13:00– Signing Event with Yamase Chika (The Maid at the Gem Shop)

Venue Stella Gallery Shinjuku 1F, Koei Building, 7-1-11 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160–0023

3-minute walk from the West Exit of 'Shinjuku Station' (all lines) 7-minute walk from the East Exit 3-minute walk from 'Seibu-Shinjuku Station' (Seibu Shinjuku Line), front exit 9-minute walk from 'Kōkubunji Station' (JR)

Exhibits & Sales - Mineral specimens - Natural stones - Gemstones - Fossils - Original Drip Gem Coffee & Gem Tea

Experience Program - Gemstone Kaleidoscope Workshop

【About Mineral & Cafe Mineral Muru】

Mineral Muru is a mineral cafe located in Itami City, Hyogo Prefecture.

We offer a space where visitors can see, touch, learn about, and purchase carefully selected minerals, gemstones, and fossils from around the world. Loved by mineral enthusiasts, our shop attracts visitors of all ages, from children to adults.

Take a break from your busy daily life and experience the sculptural beauty of nature, passed down over hundreds of millions of years.

This summer, come to Shinjuku and witness the miracles created by Earth.

Website: https://mineralmuru.com X: https://twitter.com/MineralMuru Instagram: https://instagram.com/mineralmuru