Peer Reviews
Gems & Minerals 18 oz Steel Bottle
$ 40.00
Item is in stockHurry! Low inventoryItem is out of stock
Item is unavailable
Let this flask accompany you on your next rock hunting adventure, take it to geology lecture, or park it on your desk to brighten up your work-from-home workspace. This Gems & Minerals Vacuum Flask is perfect for your favorite rock hound, jeweler, mineralogist, or natural history museum buff. Geology rocks!
With a textured design for a unique tactile experience, this flask will keep your drink hot or cold until you're ready to enjoy it.
Infuser Basket Compatible
BPA-free
Hand-wash only
Carbon Neutral Shipping & Operations
Compostable Packaging
Buy It With
$ 8.00
Here's how it works: the space between the inner and outer flask wall is evacuated, creating a vacuum (well, a partial vacuum anyway...). In order for heat transfer to take place from the outside world into your cold drink, or from your hot drink to the outside world, it needs nearby molecules to excite. If there aren't many molecules nearby, as is the case in a vacuum, the heat's energy can't easily be passed along, so your drink stays close to the temperature it was when you put it into the flask for a really long time.
Simply stated, vacuums make great thermal insulation!
| Volume | 18 oz | 530 mL |
| Width | 2.75" |
| Height | 8.75" |
| Opening | Wide mouth |
| Features | Infuser basket compatible |
| Material | High-grade stainless steel |
| Origin | Designed in Oregon, Built responsibly overseas |
| Cap Material | High-grade stainless steel, silicone ring |
| Care | Hand wash only |
USA
Flat Rate $7.95
Orders $40+ ship for free
Expedited service available
International
Shipping is available to most countries. See details at checkout.
If you're shipping to Europe, Asia, the Middle East, or Oceania, please check out our European website for lower shipping rates and quicker delivery times.
Frequently Asked Questions
-
When your order arrives, open it up and take a look. If anything isn't as expected, got damaged in transit, or doesn't fit properly, let us know and we'll make it right.
-
Shipping is available to most countries. Simply select your country at checkout.
Shipping FAQIf you're shipping to Europe, please check out our EU website for lower shipping rates and quicker delivery times.
-
We do our best to process and pack up orders within 1-2 business days. You will know your order has shipped when you receive tracking
information. Typically orders arrive within 1-8 days (depending on where you live) expedited shipping options are available at checkout. -
No problem! We offer full and partial refunds and exchanges. Read more here.
Further Research
Let customers speak for us
Function meets Form
For academic note taking, there are many expensive options but none as pretty. Get one of these for a bit of color in the lab, along with all the benefits of a nalgene or fischer notebook.
Daniel L.
Genetics Lab Notebook
Not a botanist…
I’m a scientist but not a botanist… but who cannot love such a brightly coloured bottle… I also purchased a tea infuser and I sip my favourite green tea all day.
I love the design
This bottle made my most boring meetings exciting! Every time I look at this bottle, I find detailed that I missed before… very satisfying!
Beautiful and great quality
These are the most beautiful well-crafted bottles I had ever seen and owned. They are even more impressive in person. Pictures don’t do justice.
As good as they look in the pop-up ads. Love them
Chris M.
You're a Rockstar Comet Card
Love it!
So much easier to enjoy my tea during busy work days. Thank you!
Colleen
Flip Top Lid
Pencil bag
Love my bag. Sm a coronary care nurse and that’s right up my alley. Thank you.
Marcia A.
Heartbeat Pencil Bag
Weather Geeks Need These!
I have bought several dozen packages of these. I give them to our student interns, my employees, and recently sent them up the chain to our National Weather Service leadership as a thank you. These are my favorite. I work in Portland, it's lovely to support a "local" business such as Cognitive Surplus.
PuraVidaWx
Stormy Skies Metallic Gel Pens (Pack of 6)
Gorgeous Decoration
Much too beautiful and detailed to use as wrapping paper, I put it up on my wall like a poster. It is so nice to look at but not obnoxious either. Every time I see it I find a new cool science tidbit. All of my science interests are represented and more! Great size, large enough but not too bulky, sturdy but not heavy.
Cailey R.
Interdisciplinary Science Wrapping Paper
All my writing tools fit perfectly!
Now I can be organized while working on assignments!
LOVE IT!!!! Best pencils to write with!
I love how pretty this mug is. I use it to drink tea, and I love it every time.
I love all the mugs that came in this mystery pack. They somehow managed to find four that matched my personality and that of my family and friends who got gifted these mugs. 10/10 will order again. ❤️❤️
Brenda
Mystery Mega Mug 4-pack
EKG Envy
When I bring my Heartbeat water bottle to the hospital where I work everybody is envious because they want one too. I send them your way. I fear the bottle will get stolen because it is so coveted. This bottle is not only cute and educational but also a high quality drinking vessel. It keeps beverages cool longer than others and it doesn’t sweat all over the desk when filled with ice.
Lena, P.
Heartbeat 12 oz Steel Bottle
