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



PROUSTITE

This article appears in Volume V22, Page 490 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: PRE-PYR
PROUSTITE , a
mineral
  consisting of silver sulpharsenite, AgaAsS3, known also as
light
  red silver ore, and an important source of the metal. It is closely allied to the corresponding sulphantimonite, pyrargyrite, from which it was distinguished by the chemical analyses of J. L.
Proust
  in 1804, after whom the
mineral
  received its name. Many of the characters being so similar to those of pyrargyrite (q.v.) they are mentioned under that species. The prismatic crystals are often terminated by the scalenohedron 12011 and the obtuse rhombohedron { to}, thus resembling
calcite
  (dog-tooth-spar) in habit. The colour is
scarlet
 -
vermilion
  and the lustre adamantine; crystals are trans-
parent
  and very brilliant, hut on exposure to
light
  they soon become dull black and opaque. The streak is
scarlet
 , the hardness 22, and the specific gravity 5'57. The mode of occurrence is the same as that of pyrargyrite, and the two minerals are sometimes found together. Magnificent groups of large crystals have been found at Chafiarcillo in Chile; other localities which have yielded fine specimens are Freiberg and Marienberg in
Saxony
 , Joachimsthal in Bohemia and
Markirch
  in
Alsace
 . (L. J. S.)


End of Article: PROUSTITE


If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/PRE_PYR/PROUSTITE.html">
PROUSTITE
</a>
(Previous)
PROUST, JOSEPH LOUIS (17541826) 		(Next)
PROUT, SAMUEL (17831852)

 


 
 


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