Welcome to VA Rockhound Rock Shop
  Rockhounding » Rock_Shop » Stones Cut & Polished » States / Maps » S013 My Account  |  Cart Contents  |  Checkout  | Customers Menu   
Grottoes
Fossils Shells, etc. (2)
Jewelry (149)
Mineral Specimens (91)
Rough & Slabs (11)
Stones Cut & Polished (25)
  Calibrated Cabs
  Freeform (8)
  Letters (2)
  Rocks / Slabs (2)
  Shapes (1)
  States / Maps (12)
Specials
Newest Products
Goto...
Rock_Minerals
Information
Shipping & Returns
About us
Privacy Notice
Conditions of Use
Virginia Gems
Customers Work
Contact David
What's New?  more
Virginia Psilomelane & Quartz (Merlinite) Pendant - 00642
Virginia Psilomelane & Quartz (Merlinite) Pendant - 00642
$20.00
Quick Find


Use keywords to find the product you are looking for.
Advanced Search
Virginia Blue Quartz Gneiss State Map Shape - S013~.
[S013]
$30.00

Virginia Blue Quartz Gneiss State Map
A gray and black gneiss with blue quartz lenses, collected from the near Syria, Madison County, Virginia
A map of Virginia hand cut and polished.
Approximate size: 3 1/2 inches by 1 1/2 inches by 1/4 inch

Virginia Blue Quartz Gneiss State Map Shape - Madison
Virginia Blue Quartz Gneiss State Map Shape - Madison

Open in Window
Virginia Blue Quartz Gneiss State Map Shape - Madison
Virginia Blue Quartz Gneiss State Map Shape - Madison

Open in Window
Virginia Blue Quartz Gneiss State Map Shape - Madison
Virginia Blue Quartz Gneiss State Map Shape - Madison

Open in Window

For custom cutting, wire wrapping, silversmithing send from the Contact Us page. - Thanks, David


Added to our rock_shop on Tuesday 13 January, 2009.
Blue Quartz - (metamorphic rock)
Blue quartz from the Blue Ridge Mountains is valued as a decorative stone and for jewelry. Blue quartz is found in the older basement rocks of the Blue Ridge Province. Probable age, around Grenville time; Middle Proterozoic (900 – 1600 Ma).
Most blue quartz in Virginia is in the Blue Ridge Complex lying east of the Blue Ridge Mountains. The complex extends from Loudoun County in the north to Grayson County in the south. A few occur- rences of blue quartz have been reported from the Virginia Piedmont. Most of the blue quartz in Virginia is from metamorphosed magmatic rocks of the Blue Ridge Complex.
The blue quartz found in Virginia exhibits most of the physical properties of colorless quartz. It has a hardness of 7, displays conchoidal fracture, a white streak and it is infusible before the blowpipe. When heated it retains its color, unlike some smoky or amethystine varieties. The specific gravity of blue quartz is 2.65 or higher depending on the kind and amount of included material. Inclusion-free blue quartz tends to have a lower specific gravity than specimens containing inclusions. The uniqueness of blue quartz is due to properties that are uncharacteristic in ordinary quartz, opal- escence, chatoyancy, and asterism. In addition, all blue quartz specimens are highly fractured and contain inclusions of rutile or other minerals. OPALESCENCE AND CHATOYANCY A striking characteristic of blue quartz is its opalescent, or waxy, luster. This waxy to greasy appearance is seen in all blue quartz. Light blue specimens tend to be more opalescent than darker specimens.
Division of Geology and Mineral Resources - article
PFD file from DGMR with article on blue quartz
Rock Bag  more
Empty keep rockhounding!
Rock or Mineral
Blue Quartz
Find other Blue Quartz gems & specimens -
Notifications  more
Notifications
Notify me of updates to Virginia Blue Quartz Gneiss State Map Shape - S013~.
Tell A Friend
 
Tell someone you know about this product.
Reviews  more
Write Review
Write a review on this product!

Copyright © 1997 - 2017 VA Rockhound Rock Shop
website gems by osCommerce - LinuxUK - and Me

Welcome to The Rock Shop

Parse Time: 0.073s