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The Rock Professor Browse by Mineral Type
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Huge, sitewide* 15% Off Sale! Coupon Code: JUNE2013SALE

*Excludes cathedrals, tools and stand categories. Note: Discount shown at checkout with coupon code.

The Rock Professor has provided you with a mineral
information card. Print on stock paper, and cut out to
enhance your rock and mineral products.

To print: with your cursor, highlight the entire card below,
right click and select print, then click on "selection"
and print.

THE ROCK PROFESSOR

Petrified Wood Example

PETRIFIED WOOD

Petrified wood: The name comes from the Greek "petro" or "rock", and refers to wood that has been turned to stone. The process of petrification preserves parts of ancient trees in fossil form. When the wood becomes buried under sediment, mineral-rich water flows through the sediment and replaces the cells' structure with minerals, producing a very good stone copy of the original piece of wood. The predominant minerals in petrified wood are silicates, such as quartz.

It's quite wondrous to examine a piece of petrified wood, knowing that it represents part of a hugh forest existing millions of year ago.

Minerals : Quartz, manganese, iron, copper, carbon, cobalt, chromium, iron oxides. ♦ Classification: Fossil ♦ Moh's hardness: 7 ♦ Color: Brown, red, yellow, orange, black green/blue ♦ Localities : Argentina, Belgium, Canada, Czech Republic, Germany, Egypt, Greece, Libya, United States, Australia, India, New Zealand.

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Refund Policy

We are willing to accept a return on any item that you’re not happy with. Give us a call or email to arrange for the return.

Conditions:

· Merchandise may be returned within 10 days of the date of receipt.
· Returned items must be in original condition
· Goods must be in their original packaging.
· Upon receipt of the return, we will credit the card you used for payment for the amount of the purchase, less shipping.