xUmp.com Logo

Spring Clearance Sale
Spring Cleaning Deals
Quartz Crystal Point - Large Chunk (2-3 inch) - Image One
Share this product:

Quartz Crystal Point - Large Chunk (2-3 inch)

Item#: 15763  
List Price:$15.99
Sale Price: $8.99 /each
You Save: $7.00 (43%)
IN STOCK Ships today!
Order by 1pm PST/4pm EST.
Add to cart to see shipping prices.

QTY:

This large chunk of a Quartz Crystal Point, 2-3 inches in diameter, is great for any mineral collection.

FOUND IN: BRAZIL, INDIA, MADAGASCAR, MOZAMBIQUE, NAMIBIA, SRI LANKA & USA

Quartz Crystal (Colorless, aka Clear Quartz, Rock Quartz, Rock Crystal, Crystal Quartz): The transparent colorless variety of Quartz is still known as rock crystal. Long ago, people believed that rock crystal was a compact form of ice: crystallos actually means “frozen.” The best rock crystal has the clarity and shimmer of crystal clear water. Although colorless Quartz is relatively common, large flawless specimens are not. Which is why most crystal balls these days are made of glass, not Quartz.

There are two main varieties of quartz, though they share the same chemical composition, silicon dioxide. Macrocrystalline quartz, includes stones like amethyst, aventurine, rock crystal, blue quartz, citrine, hawk’s eye, prasiolite, quartz cat’s eye, smoky quartz, rose quartz and tiger’s eye. The quartz is mostly transparent to translucent. Cryptocrystalline quartz, with microscopically small crystals, is known as chalcedony, and includes agate, chrysoprase, bloodstone, jasper and carnelian. Crytocrystalline quartz is usually opaque or translucent.

Quartz Specifications:

  • Color: Colorless
  • Color of streak: White
  • Moh’s hardness: 7
  • Specific gravity: 2.65
  • Cleavage: None
  • Fracture: Conchoidal, Very Brittle
  • Crystal system: Hexagonal (trigonal); Prisms, mostly compact
  • Chemical composition: SiO2 Silicon Dioxide
  • Transparency: Transparent
  • Refractive index: 1.544-1.553
  • Double refraction: + 0.009
  • Dispersion: 0.013
  • Pleochroism: None
  • 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

CHEM C500 Chemistry Set v2.0.

$31.99

CHEM C500 Chemistry Set v2.0

Get this great introductory chemistry kit for your favorite young scientist!

Magnetic Gyro-Fly Wheel.

$3.75

Magnetic Gyro-Fly Wheel

This simple but amusing magnetic toy will keep you busy for hours!

Glass Erlenmeyer Mug - 400ml.

$14.99

Glass Erlenmeyer Mug - 400ml

This glass Erlenmeyer mug makes an excellent gift!

Star-Ball Magnetic Puzzle.

$34

Star-Ball Magnetic Puzzle

The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!

Caffeine Glass Beaker Mug.

$14.99

Caffeine Glass Beaker Mug

This caffeine molecule mug makes an excellent gift!

Levitation Set.

$36.99

Levitation Set

Build a magnetic levitating train with this science fair project kit!

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