Out stock

Mystery Matter Box

PRODUCT TYPE: Collection Box

A box of interesting items with info cards. Items could include fossils, minerals, interesting materials, scientific tools, pure elements, experiments, and more. 

If you order multiple boxes in the same order, we'll include different items in each box unless you specify not to.

Hoping to get specific items in your box? Leave a comment in the box in the shopping cart and we'll accommodate whenever possible.


Matter is our monthly subscription box. It is currently one of the top science boxes available. Most months we have extra items and we offer a random assortment of these items here to anyone who may be curious about what to expect in the subscription.

Please note: This listing is for a one-time box of an assortment of items and NOT a subscription. If you're interested in subscribing to Matter to get new, fresh items shipped to your door every month, you can find out more here.


Pickup available at our Tulsa Storefront

Usually ready in 24 hours

Mystery Matter Box

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Customer Reviews

Based on 27 reviews
R.A. (Virginia, United States)
Gift for Dad

I bought 2 boxes together vice the subscription and was thrilled to see there weren't duplicate items. Dad was happy with his new trinkets and fun facts.

W.B. (California, United States)
Fun Filled Box

A wonderful purchase and a great gift for any science lover.

V.R. (Oklahoma, United States)
Mystery Matter Box

My brother loves science and he absolutely loved these boxes. I bought two of them and both had different items and cards explaining what each thing was

S.M. (Georgia, United States)
My Daughter’s Favorite Christmas Present!!

Fun packaging, good variety, loved the info cards!

E. (England, United Kingdom)
Such a great gift

We ordered a mystery box but specified it was for a boy who is obsessed with the periodic table and the elements and we received a box with all elements in it! It is amazing and I'm sure he will absolutely love it.

J.S. (Texas, United States)
I love It

I got several neat things. The thing I found most interesting is the Menilite sample. I intend on using it for an experiment in my college Mineralogy course using an electron microscope just to see what that might look like.

E.K. (Colorado, United States)
Great gift!

I got this as a birthday present for my brother and he loved it! Thanks for creating such a creative and interesting gift.

A.S. (Oregon, United States)
Thoughtful and Carefully Curated

The mystery box was an amazing glimpse into what this company offers. The information cards are terrific and the quality of everything was superb. My teen is rarely impressed; he certainly was about this box.

E.C. (Arizona, United States)
Great Gift

Ordered as an anniversary gift for my husband. He was very excited about the items included in the box. The cards describing the items were very useful and informative.

B. (Colorado, United States)
Unique Mini Museum

Amazing subscription box that teases the scientific mind. Unique items in each box that make it feel like a holiday every month. Conversation starters for the whole family!

Authenticity Guaranteed

Everything we sell is verified authentic. We only deal with the most reputable collectors, and consult with our trusted network of scientists and experts.

Free Shipping

All orders of $50 or more qualify for free shipping in the US.

Easy Payments

We accept most cards, PayPal, After Pay, Apple/Google/Meta Pay, and crypto.

Simple Returns

Change your mind? No problem. Enjoy easy returns within 30 days.

Free Stickers

We toss a random science sticker in every online order

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Mystery Matter Box

Mystery Matter Box