£0.00View All
(0) Shopping Cart
Currency
FORTHCOMING EVENTS

​​​​​​​​​​​​​​​​​​​​​​​​
​​​​​​​For details of forthcoming events please click on the 'Shows & Fairs' tab above.​​​​​

​​​​​​​​​​​​​​
​​​​​​​​​​​​​​​​
​​​​​​​​​​​​​​​​​​​

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

CAVE PEARL

« back
Home > MINERALS > MINERALS FROM BRITAIN AND IRELAND FOR COLLECTORS > NORTHERN AND CENTRAL ENGLAND

 
'CAVE PEARL'

Split in half to reveal the internal structure


A cave pearl is a small, usually spherical pebble that forms by the accumulation of calcium carbonate (calcite) around a nucleus. They occur on the floors of caves where water is flowing too vigorously to form a stalagmite.

This example has been split in half to see the way the layers of calcite have formed around the nucleus - in this case a tiny fragment of rock. Cave pearls are always small - rarely more than a centimetre in diameter.

Like stalactites and stalagmites, cave pearls take a long time to form and nowadays cavers are advised not collect them but to leave them in place for others to see. This example came from an old collection. It is said to be from a cave system in Northern England.

Presented in a glass display box.

 
Click on a picture for a larger image

Size: 4 x 4 x 1.5 centimetres (size of box)
Weight:  16 grams (including box)

PRICE: £15.00
Sorry, this item has been sold or is out of stock
CAVE PEARL
CAVE PEARL CAVE PEARL CAVE PEARL CAVE PEARL