
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 ]










New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Japan’s cheap beef bowl chain goes upscale with Matsuya Premium, but is it worth the higher price?
East Japan Railway announces plans to abolish magnetic-strip tickets
Anne Hathaway creates PR frenzy in Japan after mentioning Tottori in Devil Wears Prada interview
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Japan’s cheap beef bowl chain goes upscale with Matsuya Premium, but is it worth the higher price?
East Japan Railway announces plans to abolish magnetic-strip tickets
Anne Hathaway creates PR frenzy in Japan after mentioning Tottori in Devil Wears Prada interview
Shakey’s Japan creates matcha mochi, Kyoto fish, and Kansai Chili Con Carne pizzas
Two of Kyoto’s famous temples tackle streetside trash with solar-powered trash cans
New Square Enix Cafe reveals Final Fantasy, Dragon Quest, Nier, and Fullmetal Alchemist menu items
Super Mario Galaxy Happy Meal toys now available at McDonald’s Japan
Date handsome cockroaches in a new dating sim from one of Japan’s leading pest control companies
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
Ghibli’s No Face continues to demonstrate his generous character growth by dispensing soy sauce
Japanese rice cooker recipe gives us a tasty new way to enjoy vegetables and wieners
Family Mart commits “reverse fraud” in new Giant All-Star Festival, and we couldn’t be happier
New Tokyo sweets shop offers 648 different mochi ice cream dumpling combinations
Colour Hunting: The hot new street photography trend changing how we see Japan
Body of missing American college student found in Kyoto mountains
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Kanji ice cream becomes a sell-out hit in Japan
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Japanese convenience store shows us how to dress for the rainy season
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Shakey’s Japan creates matcha mochi, Kyoto fish, and Kansai Chili Con Carne pizzas
Two of Kyoto’s famous temples tackle streetside trash with solar-powered trash cans
New Square Enix Cafe reveals Final Fantasy, Dragon Quest, Nier, and Fullmetal Alchemist menu items
Super Mario Galaxy Happy Meal toys now available at McDonald’s Japan
Date handsome cockroaches in a new dating sim from one of Japan’s leading pest control companies
Bears appear at one of Kyoto Prefecture’s most popular tourist spots[Video]
Starbucks Japan releases special limited-edition summer drinks… at only 30 stores
7-Eleven Japan reinvents convenience store fruit sandwiches with new salty pink sakura peach variety
Starbucks adds new Fruit Gummy sweets to stores in Japan
Trigun Legacy Cafe coming to two Japanese cities this summer to salute series’ original form
Family Mart commits “reverse fraud” in new Giant All-Star Festival, and we couldn’t be happier
JR’s new overnight sleeper train will connect Tokyo and northern Japan, is private cabin-only
Burger King Japan offering all-you-can-eat quad-burgers, whoever eats the most gets more in December
Dragon Quest King Slime eye drops fly off shelves in less than a day