159 



by fluor-spar, as it is often called, is perhaps greater than in 

 any other mineral ; bnt shades of blue generally predominate. 

 Small quantities are used for fluxing purposes in some smelting 

 Avorks. The Museum possesses a fine series of specimens from 

 the lead mines of the North of England, where fluorite is very 

 abundant and beautifully crystallized. 



Fluorite has been found at a number of localities in this 

 State ; but the only good crystals are those from the Gundle 

 Tin Mines, Macleay Eiver. A block of the lode tin ore is 

 exhibited in 126 : it contains drusy cavities, lined with quartz 

 and purple and green fluor. 



6906, Shoalhaven ; interpenetrating green and blue cubes. 

 285, Pheasant Creek, Co., Clive ; banded, variegated fluor, with 

 mica. 281, Deepwater ; green. 9125, Deepwater ; blue, with 

 chlorite. 7760, Snowy Eiver; blue. 7689, Young District; 

 colourless. 7685, Eed Eange, G-len Innes ; colourless. 59, 

 Yass ; colourless. 8239, Purnamoota, Barrier Eange ; blue, with 

 galena. 2124, Emerald Mines, Emmaville ; blue, associated with 

 topaz, tinstone, and beryl. 8421, Bald Nob, Emmaville; greenish 

 blue, with native copper. 



In case 60, will be found fluor from near Yass, containing 

 galena ; and ia case 63 azurite in fluor from the Grood Hope Mine, 

 Yass. 



Interpenetrating cubes of fluor. 



