xUmp.com Logo

Spring Clearance Sale
Spring Cleaning Deals
Citrine Druzy - Large Chunk (2-3 inch) - Image One
Share this product:

Citrine Druzy - Large Chunk (2-3 inch)

Item#: 15759  
List Price:$15.99
Sale Price: $8.99 /each
You Save: $7.00 (43%)
IN STOCK Ships next business day.
Add to cart to see shipping prices.

Only 4 left in stock - order soon!
QTY:

This large chunk of Citrine Druzy, 2-4 inches in diameter, is great for any mineral collection.

Citrine is a variety of quartz whose color ranges from a pale yellow to brown due to ferric impurities. Quartz itself is the second most abundant mineral in the Earth’s continental crust, after feldspar.  Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Europe and the Middle East.

Quartz is a defining constituent of granite and other felsic igneous rocks, and can thus be found all over the world.  It is very common in sedimentary rocks such as sandstone and shale and is also present in variable amounts as an accessory mineral in most carbonate rocks.Not all varieties of quartz are naturally occurring. Some clear quartz crystals can be treated using heat or gamma-irradiation to induce color where it would not otherwise have occurred naturally. Susceptibility to such treatments depends on the location from which the quartz was mined.  However, there are naturally occurring quartz crystals of extremely high purity, necessary for the crucibles and other equipment used for growing silicon wafers in the semiconductor industry, which are expensive and rare.

FOUND IN: BRAZIL, PRIMARILY

Quartz crystals have piezoelectric properties; they develop an electric potential upon the application of mechanical stress. An early use of this property of quartz crystals was in phonograph pickups. One of the most common piezoelectric uses of quartz today is as a crystal oscillator. The quartz clock is a familiar device using the mineral.

Specifications:

  • Color: Orange, White
  • Color of streak: White
  • Moh’s hardness: 7 (lower in impure varieties)
  • Specific gravity: 2.65
  • Cleavage: Indistinct
  • Fracture: Conchoidal
  • Crystal system: Trigonal/Hexagonal
  • Chemical composition: SiO2
  • Transparency: Transparent to Opaque


Age:
14 +
Box Size:
4.00 x 2.75 x 2.00 inches
10.16cm x 6.99cm x 5.08cm
Weight:
0 lb 11 oz
0.29 kg

Customer Reviews


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

FEATURED PRODUCTS

Human Anatomy Model - Large 20 in.

$109

Human Anatomy Model - Large 20 in

The large realistic model has removable organs that can be studied and set back into the correct position.

Balancing Eagle.

$4.49

Balancing Eagle

Defy gravity with this cool balancing eagle!

Hydropower Kit.

$39

Hydropower Kit

Check out this amazing renewable energy science kit featuring the wonders of hydroelectric power!

Glass Erlenmeyer Mug - 400ml.

$14.99

Glass Erlenmeyer Mug - 400ml

This glass Erlenmeyer mug makes an excellent gift!

Snap Circuits Jr. .

$29.99

Snap Circuits Jr.

Build over 100 exciting electronic projects with this easy to use kit!

Red Pi T-Shirt.

$18

Red Pi T-Shirt

NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.

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