Our navigation bar is loading . . .

 


 

Jesus Christ Saves Ministries

Helping San Diego, California and beyond since 1997.  




 

JCSM's Top 1000 Christian Sites - Free Traffic Sharing Service!


Do you need volunteer, community service, work, military or court hours?

Click here and add this page to your favorites!

Return to the JCSM Study Center!

Encyclopedia Britannica



CARNELIAN

This article appears in Volume V05, Page 365 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: CAR-CAU
CARNELIAN , a red variety of
chalcedony
 , much used as an ornamental stone, especially for seals. The old name was cornelian, said to have been given in reference either to the horny
appearance
  of the stone (Lat. cornu, " horn ") or to its resemblance in colour to the
berry
  of the cornel; but the
original
  word was corrupted to carnelian, probably in allusion to its reddish colour (carneus, " flesh-coloured "). Some carnelian, however, is brown, yellow or even white. Certain kinds of brown and
bright
  red
chalcedony
 , much resembling carnelian, pass under the name of sard (q.v.). The Hebrew odem was probably a red stone, either carnelian, sard or jasper. All carnelian is translucent and is thus distinguished from jasper of similar colour, which is always opaque. The red colour of typical carnelian is due to the presence of ferric
oxide
 . This is often developed artificially by exposure to sunshine, or to artificial heat, whereby any ferric hydrate in the stone becomes more or less dehydrated; or the stone is treated with a solution of an iron salt, like ferrous sulphate, and then heated, when ferric
oxide
  is formed in the pores of the stone. An opaque white surface is sometimes produced artificially on a red carnelian: this is said to be done by coating the stone with carbonate of soda and then placing it on a red-hot iron; or by using a mixture of potash, white lead and certain vegetable juices, and
heating
  it on charcoal.
Inscriptions
  and figures in white on red carnelian (" burnt carnelian ") are well known from the
East
 . Much carnelian comes from India, being mostly derived from agate-gravels, resulting from the disintegration of the
Deccan
  traps, in the neighbourhood of Ratanpur, near Broach. A good deal of the carnelian now sold, however, is Brazilian agate, artificially stained. (See AGATE.)


End of Article: CARNELIAN


If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/CAR_CAU/CARNELIAN.html">
CARNELIAN
</a>


(Previous)
CARNEGIE, ANDREW (1837 )
(Next)
CARNESECCHI, PIETRO (1508-1567)



 
 


JCSM was founded in 1997 and exists to help the community and bring people into a life-changing and productive relationship with Jesus Christ. JCSM offers over 200,000 free web pages, including its weekly inspirational emails that were sent continuously for over a decade.

Jesus Christ Saves Ministries
P.O. Box 9297
San Diego, CA  92169
1-888-887-0417 or Email

JCSM is a 501(c)(3), non-profit organization. Copyright © 1997-2012.
 

 

Sponsored Advertisements

Online First Aid and CPR Certification  .  DHA Solutions  .  PB Happy Hour Specials  .  Improvising Made Easy For Guitar and Bass  .  The Skeptic's Annotated Bible: Corrected and Explained  .  Home Equity Loans  .  First Aid and CPR Online  .  San Diego Music Lessons  .  10,000 Wise Quotes and Spiritual Sayings  .  Blow Up Your Site (For Free!)  .  San Diego DUI Lawyers  .  Jason Gastrich  .  Jordan Faith Gastrich  .  Divorce Secrets Revealed  .  Post Your Ad Link Free  .  San Diego Soccer Training  .  JCSM  .  Download Sermons  .  Custom Religious Banners, Build A Sign  .  Christian Singles Dating  .  Christian T-Shirts  .  Healing Christian Prayer  .  Bumper Authority  .  Personalized Blogs and Email  .  San Diego Haircuts  .  The Do the Math Diet  .  Stop Twitter Spam  .  Christian Conservative Work at Home Network  .  The Website of the Lord