Italiano  English  

We decided to close for a few days for security reasons in order to avoid contacts with customers, suppliers, couriers etc. to protect us and everyone because we believe it is time to give priority to health rather than economic reasons. We feel as soon as possible when all this has passed thanks to te commitment and sacrifice of everyone.
Every order will be kept in suspense until the opening date of our office.
You cannot do any new purchases in this moment, because out of order. However, you can add the products you look at on your Wish List to buy them later.
Please don’t send us orders by e-mail, thank you.
 Sorry for eventually inconveniences and... everything will be fine :-)

dollar pyrite

PRICE :
48,50 39,50
19%  off
  • Product Code: M16666

Description

Origin : Illinois (USA)

Geological era : Permian

Age : 300 million of years

Size : 187 gr - cm 10.4 x 9


Dollar pyrite, 187 gr - cm 10.4 x 9, ony a piece, as in picture.
Also available tumbled, rough, in plexiglias box, nodule and cubic, at this link.

The dollar pyrite or solar pyrite formed in the seams between black shale and coal  or in plaques of slate 250-300 million of years ago (Permian). A modern theory believed to be formed for mineralization of some fossils, such as some irregular sea urchins, but in reality it seems to be a peculiar aggregate of tiny pyrite crystals. It was originally believed was marcasite, but research conducted by the Smithsonian Institute have proven that it is a very stable form of pyrite. Today is collected by the miners 300 feet deep in a very thin layer located above the vein in Randolph County, Illinois.  As the Illinois coal mines are shut down one by one, these specimens will become more and more rare.
Chemistry: Iron Sulfide  Class: Sulfides
Color: brass-yellow  Luster: metallic Transparency: opaque
Fracture: none/conchoidal  Crystal system: Isometric
Moh's hardness: 6-6.5  Localities: Sparta, Randolph Co. Illinois.
The mineral is shipped in a special sealed bag to prevent oxidation and equipped with a descriptive card.



For information or assistance please send a mail (see Contact Us): we'll contact you as soon as possible.

Remember that mails sent without object or with only a writing such as "info" will be deleted as precaution against  virus and spam.

Do not forget to read the terms of sale in the footer below, BEFORE you make a purchase!

Insert you e-mail address in order to be updates on our products and promo

Gift Ideas (click on photo)
Back to Top