xUmp.com Logo

Back-To-School 2020 Science Supplies Sale
Back-To-School 2020 Science Supplies Sale
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 next business day.
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

Advanced Fossil Collection.

$59.99 $43

Advanced Fossil Collection

Comprehensive collection of 30 fossils.

MuscleWires Project Book and Sample Kit.

$32.99 $27

MuscleWires Project Book and Sample Kit

This project book and sample kit introduces you to shape-memory alloy technology!

Detective Science Fingerprint 4M Kit.

$14.99 $10

Detective Science Fingerprint 4M Kit

Learn about detective science through this fun fingerprinting kit!

Blue Magic Wand Kaleidoscope.

$17.99 $12.99

Blue Magic Wand Kaleidoscope

Get one of the craziest and coolest kaleidoscopes around!

Meccano Super Construction Set - 638 Pieces.

$159.99 $119

Meccano Super Construction Set - 638 Pieces

This SUPER Erector Construction set is one of the best you'll find anywhere!

4M Kitchen Science Kit.

$19.99 $12

4M Kitchen Science Kit

Perform awesome experiments using everyday materials found in any kitchen!

Science-Sidebar: Science Education Articles

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.