On Double Crystals of Fluor Spar - Whewell 1821

Main Menu - click above

Photo Rob Lavinsky

Heights Mine twin.

The interpenetrant fluorite twins of Weardale are geometrically explained. "Aldstone Moor" should read "Alston Moor."  However the crystals are much more likely to be of Weardale origin.

This review from The British Critic -

Please help beat cancer - DONATE click above

Unrelated to this post, below is an example of

eclectic science esoterica 

Sir William Crookes

Main Menu - click above

WARNING - Many subjects outlined within this site are extremely dangerous and are provided here for information only. Please don`t experiment with high voltages or chemicals unless you are fully conversant with safe laboratory practices. No liability will be accepted for death, injury or damage arising from experimentation using any information or materials supplied.