xUmp.com Logo

COVID-19 NOTE (7/12/20): We are fully stocked, open & shipping orders daily. Order with confidence. Stay healthy & safe! Click here to shop for PPE
TODAY'S COUPON: SAVE ADDITIONAL $8 OFF orders over $55 with coupon code: SUMMER2020 [Expires tonight at 11:59PM. Online orders only.]
Pumice - Bulk Mineral - Image One
Share this product:

Pumice - Bulk Mineral

by xUmp.com   Item#: 16401   5 star rating 1 customer reviews
List Price:$2.99
Sale Price: $1.49 /each
You Save: $1.50 (50%)
IN STOCK Ships next business day.
Add to cart to see shipping prices.

Only 10 left in stock - order soon!
QTY:
 

Pumice is a low-density volcanic rock that consists of highly vesicular, rough, textured, volcanic glass, which may or may not contain crystals. It is typically light colored.  Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. The unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization.  This simultaneous process freezes bubbles from gases being dissolved in the lava and preserves them in a matrix, which gives pumice its highly porous texture.  Pumice's highly unique process of formation yields an extremely low-density rock; in fact, pumice is the one and only rock that will not sink in water!  Pumice floats and bobs along the surface where other rocks would sink to the depths.  Great for understanding density and can be used in classroom experiments.

Included: one 1" chunk of pumice


Age:
14 +
Box Size:
1.00 x 1.00 x 1.00 inches
2.54cm x 2.54cm x 2.54cm
Weight:
0 lb 1 oz
0.03 kg

Customer Reviews


5 star rating  Floats now
Bryan from Colorado Springs, CO
I ordered this and it didn't float right, but xump was quick to make it right and send me out a new rock. I appreciated their responsive customer service.


POPULAR PRODUCTS

Santa Cruz Bio Nitrile Exam Gloves - SMALL - Box of 100.

$24.99 $18.95

Santa Cruz Bio Nitrile Exam Gloves - SMALL - Box of 100

Great exam quality Nitrile gloves in size SMALL.

SMS Lab Coat with 3 Pockets - White - LARGE.

$17.99 $9.95

SMS Lab Coat with 3 Pockets - White - LARGE

High-protection, fluid-resistant and anti-static disposable lab coat in size Large.

UltraBlue PRO Exam Grade Nitrile Gloves - LARGE - Box of 100.

$27.99 $24.95

UltraBlue PRO Exam Grade Nitrile Gloves - LARGE - Box of 100

These premium 5mil medical-grade Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.

iSmile Nitrile Exam Gloves - MEDIUM - Box of 100.

$24.99 $19.95

iSmile Nitrile Exam Gloves - MEDIUM - Box of 100

Box of 100 First Touch powder-free MEDIUM Nitrile exam gloves.

Laboratory Protection Apron.

$12.99 $8.75

Laboratory Protection Apron

Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments

ASTM Level 1 Earloop Face Masks - Pack of 50.

$49.99 $39.95

ASTM Level 1 Earloop Face Masks - Pack of 50

These disposable surgical-style earloop face masks conform to the ASTM F1862 Level 1 clasification. Box of 50.

FEATURED PRODUCTS

Candy Chemistry Kit .

$49.99 $34.99

Candy Chemistry Kit

Learn Chemistry While Creating Sweet Treats

Smart Robot 4M Kit.

$22.99 $15.99

Smart Robot 4M Kit

Build your very own smart robot!

Blue Magic Wand Kaleidoscope.

$17.99 $10

Blue Magic Wand Kaleidoscope

Get one of the craziest and coolest kaleidoscopes around!

Human Anatomy Model - Large 20 in.

$149.99 $109

Human Anatomy Model - Large 20 in

The large realistic model has removable organs that can be studied and set back into the correct position.

Snap Circuits Light Kit.

$109.99 $99.95

Snap Circuits Light Kit

Watch what your music can create with this amazing Snap Circuits set!

Jacob's Ladder.

$7.99 $4.99

Jacob's Ladder

An ancient toy featuring optical illusion and hands-on fun that never grows old!

Science-Sidebar: Science Education Articles

xUmp.com Logo


Join our tribe:
At xUmp.com, we are passionate about science. We believe in hands-on learning and making science fun. - Anton Skorucak, Physicist and Founder

At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.