xUmp.com Logo

Science Supplies, Science Toys and Science Gifts Mega Sale
Save up to 80% off selected science products!
Amethyst Point - Large Chunk (2-3 inch) - Image One
Share this product:

Amethyst Point - Large Chunk (2-3 inch)

by xUmp.com   Item#: 15762  
List Price:$12.99
Sale Price: $6.99 /each
You Save: $6.00 (46%)
IN STOCK Ships today!
Order by 1pm PST/4pm EST.
Add to cart to see shipping prices.

Only 4 left in stock - order soon!
QTY:
 

This large Amethyst Point, 2-3 inches in diameter, is great for any mineral collection.

This beautiful Amethyst Point formed with a group of points inside an Amethyst Geode. Amethyst is the most highly valued stone in the quartz group. It can take over 75 million years to form and can be found in geodes in alluvial deposits. The purple color is caused by ferric iron.

FOUND IN: AUSTRIA, BRAZIL, CANADA, INDIA, RUSSIA, SOUTH KOREA, URUGUAY, USA AND ZAMBIA.

Amethyst is the violet variety of quartz and a complex interplay of iron and aluminum is responsible for the color which ranges from pale pinkish lavender to deep purple. The color can fade with exposure to light. It is the birthstone of February, and a symbol of heavenly understanding.

Amethyst Spacifications:

  • Color: Violet, Pale Red-Violet
  • Color of streak: White
  • Moh’s hardness: 7
  • Specific gravity: 2.63-2.65
  • Cleavage: None
  • Fracture: Conchoidal, Brittle
  • Crystal system: Hexagonal (triagonal) Hexagonal Prisms
  • Chemical composition: SiO2 Silicon Dioxide
  • Transparency: Translucent
  • Refractive index: 1.54-1.55
  • Double refraction: -0.009
  • Dispersion: 0.013
  • Pleochroism: Very Weak, Violet, Gray-Violet
  • Absorption spectrum: Not Usable
  • Fluorescence: None


Age:
14 +
Box Size:
3.00 x 3.00 x 3.00 inches
7.62cm x 7.62cm x 7.62cm
Weight:
0 lb 10 oz
0.28 kg

Customer Reviews


There are no customer reviews for this product. Be the first one to write one!

FEATURED PRODUCTS

Ball of Whacks.

$34

Ball of Whacks

The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!

Fuel Cell 10 Kit.

$179

Fuel Cell 10 Kit

Learn about hydrogen fuel cells with this incredible kit!

Snap Circuits Motion Detector.

$24.99

Snap Circuits Motion Detector

Easily assemble a working alarm motion detector!

Moving Butterfly - Monarch.

$24.99

Moving Butterfly - Monarch

This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!

Tarantula Specimen.

$24.99

Tarantula Specimen

Great tarantula specimen for the science classroom!

The Original Gyroscope.

$8.99

The Original Gyroscope

Check out this high-quality gyroscope!

xUmp.com Logo


Join our tribe:

SIGN-UP & SAVE

Sign-up for our weekly discounts and promotions email newsletter.



xUmp.com Catalog

CATALOG

View xUmp science supplies catalog

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.