£0.00View All
(0) Shopping Cart
Currency
RECOMMENDED ONLINE RESOURCES

  

How to recognise fake fossils:

http://www.fossilmuseum.net/

collect/fossilfakes.htm​​​​​​​

  

If you've found a meteorite:

https://sites.wustl.edu/

meteoritesite/items/what_to_do/

​​​​​​​

If you live in London:

​​​​​​​​​​​​http://londonpavement

geology.co.uk​​​​​​​
​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

For beautiful decorative stones:

​​​​​​​http://www.oum.ox.ac.uk/corsi/​​​​​​​

  

For the geology of where you are:

https://www.bgs.ac.uk/discovering

Geology/geologyOfBritain/viewer.html​​​​​​​
​​​​​​​​​​​​​​​​​​​  
​​​​​​​​​​​​​​​​​​​​​
The Jurassic Coast fossil finder:

https://jurassiccoast.org/what-is-the-

jurassic-coast/all-about-fossils/fossil-

finder/fossil-finder-database/

  

The rocks and minerals of Minecraft​​​​​​​​​​​​​​

https://www.mindat.org/a/minecraft​​​​​​​

    

Click here for more online resources

AMYGDALOIDAL BASALT (TOADSTONE) - Derbyshire

« back
Home > MINERALS > UNUSUAL ROCKS AND MINERALS - WEIRD AND WONDERFUL !

   

AMYGDALOIDAL BASALT

(TOADSTONE)
   
Matlock, Derbyshire
  

Basalt is a dark coloured igneous rock which is often full of gas bubbles. When the lava or magma hardens into rock the bubbles are left as cavities which are known as vesicles. Over time these cavities usually become filled with crystals of minerals. These crystal-filled cavities are known as amygdales. The name comes from the latin ‘amygdula’, an almond, because the filled bubbles were frequently flattened and looked like almonds.
  
The igneous rocks of Derbyshire, known as ‘toadstones’ by the old lead miners, are mostly olivine-dolerites and olivine-basalts. The molten magma was injected into fissures in the existing Carboniferous Limestone.
  
Provided with a comprehensive label as shown.
 
Click on a picture for a larger image


Size:  9 x 7 x 2.5 centimetres
Weight:  194 grams

PRICE: £12.00
Sorry, this item has been sold or is out of stock