xUmp.com Logo

COVID-19 NOTE (7/4/20): 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.]
Elestial Quartz - Large Chunk (2-3 inch) - Image One
Share this product:

Elestial Quartz - Large Chunk (2-3 inch)

by xUmp.com   Item#: 16421  
List Price:$15.99
Sale Price: $10.99 /each
You Save: $5.00 (31%)
IN STOCK Ships next business day.
Add to cart to see shipping prices.

Only 4 left in stock - order soon!
QTY:
 

Elestial quartz (also known as skeletal quartz) exhibits unique internal and external dissolution-growth features resulting from unstable conditions during crystallization. These elestial growth features most often occur in the macrocrystalline quartz varieties rock crystal and smoky quartz, and more rarely in citrine or amethyst.  Elestial quartz crystals often form with a geometric pattern of lines, depressions and raised terminations (related to the quartz crystal structure) inscribed on their surface. Internally, these crystals exhibit plainly visible cavities in geometric patterns (also related to the quartz crystal structure) that can contain clay minerals of varied colors, sometimes accompanied by carbon dioxide or water. These cavities frequently have a layered or ribbed aspect and are sometimes so pronounced that they make the crystal appear almost hollow, giving rise to the term elestial quartz.

Occasionally these cavities contain both liquid and gas phases together known as two-phase inclusions. In rare cases, these two-phase inclusions in quartz can be visible to the naked eye and may show actual movement of the gas phase within the liquid phase (popularly known as elestial quartz crystal 'enhydros'). Elestial quartz occurs in vugs or pockets in granitic pegmatites associated with the feldspar varieties microline and albite, and it is sometimes found together with some of the more rare pegmatite minerals such as lepdiolite & amblygonite. Elestial quartz also occasionally occurs together with some of the rare pegmatite gem varietie such as aquamarine, kunzite, and toumaline.

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:
2.00 x 2.00 x 3.00 inches
5.08cm x 5.08cm x 7.62cm
Weight:
0 lb 7 oz
0.20 kg

Customer Reviews


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

POPULAR PRODUCTS

ASTM Level 1 Earloop Face Masks - Pack of 50.

$59.99 $43.95

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.

RelyAid Nitrile Exam Gloves - X-SMALL - Box of 100.

$22.99 $14.95

RelyAid Nitrile Exam Gloves - X-SMALL - Box of 100

Box of 100 X-SMALL nitrile exam gloves.

Medline PRO Nitrile Exam Gloves - LARGE - Box of 100.

$39.99 $27.99

Medline PRO Nitrile Exam Gloves - LARGE - Box of 100

Professional Powder-Free Textured Nitrile Exam Gloves with Aloe, Size Large

SMS Lab Coat with 3 Pockets - White - EXTRA LARGE.

$9.99 $7.49

SMS Lab Coat with 3 Pockets - White - EXTRA LARGE

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

Challenger Safety Goggles - Clear Anti Fog.

$9.99 $7.95

Challenger Safety Goggles - Clear Anti Fog

These goggles meet the ANSI Z87.1, 2010 High Impact standards.

RelyAid Nitrile Exam Gloves - X-LARGE - Box of 100.

$24.99 $17.95

RelyAid Nitrile Exam Gloves - X-LARGE - Box of 100

Box of 100 X-LARGE nitrile exam gloves.

FEATURED PRODUCTS

Blue Magic Wand Kaleidoscope.

$17.99 $10

Blue Magic Wand Kaleidoscope

Get one of the craziest and coolest kaleidoscopes around!

Sun Art Paper - 8 x 10.

$16.99 $12.95

Sun Art Paper - 8 x 10

Create beautiful art with this amazing sun paper!

Solar Power Science Kit.

$59.99 $47.95

Solar Power Science Kit

Discover how solar cells make electricity with this awesome kit!

The Original Hoberman Sphere.

$49.99 $37.99

The Original Hoberman Sphere

The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.

Caffeine Glass Beaker Mug.

$24.99 $14.99

Caffeine Glass Beaker Mug

This caffeine molecule mug makes an excellent gift!

Kilovoltron Van de Graaff Generator.

$299.99 $279

Kilovoltron Van de Graaff Generator

This smaller transportable Van de Graaff Generator will easily fit in any classroom!

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.