MINERALOGICAL NOTES : \0. V. ANDERSOX. 



421 



I. — Inverell ; taken for water 4240 gram, general -4820 gram. 

 II. — Inverell ; taken -5395 gram. 

 III.— Table Mt., Colorado.^'' 



IV. 



^ , , . . f f Na.O. ALA 2SiO... 2iH.,0. 

 (calculated torj^ (CaO. AlA- 2810,." 2iH.,0). 



SCOLECITE 

 VV'ekkis Cheek, New South Wale.s. 



This mineral is associated with heulandite and stilbite in a 

 decomp(jsed andesitic rock containing plienocrysls of plagioclase 

 almost completely zeolitised ; the scolecite occurs as white nodular 

 radiated masses. Before tlie blowpipe intumesces slightly and 

 fuses to a blebby enamel. Mr. D. A. Porter who presented the 

 specimens to the Trustees informs me that it is rather rare at the 

 locality. 



The mineral gelatinises with hydrochloric acid and yielded the 

 fV)llowing percentages : 



'' llillebraiKl — Lor. fit. p. 25. 



