
Have your crystals and eat them too.
They say diamonds are forever but besides their famous hardness, it’s our fascination with gems, crystals, and other minerals that never seems to cease. Their often glittering geometric beauty crafted by nature over periods of time that sometimes stretch into eons has captivated our imaginations throughout human history.
And now we can eat them too!
Not the actual crystals of course, but Usagi no Nedoko, a lifestyle goods and dessert maker in Tokyo and Kyoto, has crafted a set of cakes that look a lot like the real things. Called Crystal Rock Cake (Kessho Rock Cake), each cake resembles a type of crystal embedded in rock.
▼ They come in a very classy box too.
It’s also a play on conventional rock cakes, which are a crumbly type of cake from Britain similar to a scone. When you open up the box you’ll find each cake individually boxed like geological samples.
▼ Clockwise from top left: Fluorite, Apatite, Amethyst, Garnet, Lazulite
The gemstone parts are each made from pâte de fruits, a chewy and sweet French confection made from a fruit flavored jelly paste. In addition to having a delectable taste and texture, they also have just the right kind of sheen to resemble a real crystal.
Our writer Natsuki Gojo bought a box for 2,160 yen (US$15) and tried each one out, starting with the Fluorite. This was a mint-flavored candy atop a dark chocolate rock cake for a more mature flavor.
Next, the Apatite was made from an apple-flavored pâte de fruits on a rock cake with a firm aroma of black tea. This cake would go quite well with a real cup of tea on a relaxing afternoon.
The Lazulite uses a plain rock cake to really bring out the unique look and flavor of the bright blue gemstone topping. This is flavored with blue curaçao, a Dutch distilled liquor made with the citrusy scent of laraha peels.
The mango-flavored Garnet topping is interestingly matched up with a very aromatic rock cake that contains black sesame. The two tastes went together much better than Natsuki expected.
Her favorite one was Amethyst, mostly because the pale purple color reminded her of the actual stone. It also had a mysteriously deep floral taste that she wasn’t familiar with but later learned was parfait d’amour.
The rock cake also has bits of almond in it for a slightly more rocky texture than the others.
For each cake there was an excellent balance of flavors and textures. In each case the gems themselves would have been too sweet and chewy, whereas the cakes would have been too plain and dry on their own. But together, they made perfect harmony.
For that reason alone they’re great, but their stunning visual presentation guarantees they’ll make the perfect souvenir or gift. Even if you can’t get out to Tokyo or Kyoto, Crystal Rock Cake can be purchased online from anywhere in Japan. Quantities are limited though, so act fast or you’ll be able to form your own amethyst waiting for them.
Source: Usagi no Nedoko
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]










What’s inside Starbucks Japan’s fukubukuro lucky bag for 2026?
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Bamboo trees vandalized near Kyoto’s Fushimi Inari shrine, foreign graffiti prevalent
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
What’s inside Starbucks Japan’s fukubukuro lucky bag for 2026?
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Bamboo trees vandalized near Kyoto’s Fushimi Inari shrine, foreign graffiti prevalent
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
How lucky are the themed retro video game lucky bags from this shop in the Tokyo boonies?
10 times to avoid traveling in Japan in 2026
New Pokémon cakes let you eat your way through Pikachu and all the Eevee evolutions
Cast of this summer’s live-action Naruto stage play looks more awesome than ever in new photos
Collect ’em all! New Pokéfuta accessories now available at Village Vanguard
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Top Japanese cosplayer Enako returns to Comiket after 6 years, creates mayhem with admirers
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Umamusume anime girl plushie recalled for having parts she absolutely should not have【Pics】
We ate sushi made from Japan’s most expensive tuna ever【Taste test】
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Starbucks Japan releases new zodiac chilled cup drink for 2026
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Human washing machine pods coming to Japanese hotels【Photos】
How lucky are the themed retro video game lucky bags from this shop in the Tokyo boonies?
10 times to avoid traveling in Japan in 2026
New Pokémon cakes let you eat your way through Pikachu and all the Eevee evolutions
Cast of this summer’s live-action Naruto stage play looks more awesome than ever in new photos
Collect ’em all! New Pokéfuta accessories now available at Village Vanguard
Japan’s 10 best Ferris wheels for beautiful views, as chosen by travelers【Survey】
Visiting the Kikyoya Shingen Mochi theme park takes some planning–but it’s a stop worth making!
How to make sushi that looks like real-life swimming koi fish【Video】
This cat has a super cute reaction to Japanese owner’s beckoning hands 【Video】
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Japan’s top 10 travel experiences in the sky【Survey】
Private booths are coming to Japan’s Shinkansen bullet trains even sooner than we’d thought【Video】
Here it is: The finalized map for Super Nintendo World at Universal Studios Japan (and its food)
Leave a Reply