xUmp.com Logo

Back To School Science Supplies Sale
Back To School Science Supplies Sale
Amethyst Point - Large Chunk (2-3 inch) - Image One
Share this product:

Amethyst Point - Large Chunk (2-3 inch)

Item#: 15762  
List Price:$12.99
Our 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 7 left in stock - order soon!
QTY:

Save additional 10% OFF with coupon code: BTS2018

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

130 Electronics Projects Kit.

$48.50

130 Electronics Projects Kit

Start a great hobby in electronics with this state of the art electronics project lab!

Remote Control Machines Kit.

$69.90

Remote Control Machines Kit

Command robotic creations with this cool construction kit!

Discovery Pack.

$15.99

Discovery Pack

A combination of three of our great discovery toys, all in one package!

Motors & Generators Kit.

$29

Motors & Generators Kit

With this kit, you can conduct 25 experiments to learn how an electric motor converts electricity into motion, and how an electric generator does just the opposite, converting motion into electricity.

Break-Your-Own Geodes Kit.

$11.99

Break-Your-Own Geodes Kit

Find the hidden crystals when you open your own geodes from this fun set.

ATR - All Terrain Robot Kit.

$49

ATR - All Terrain Robot Kit

This kit allows to build up to 3 different robots!

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

xUmp.com Mission