42 D. A. PORTER. 



Hyalite is found at Cockburn Creek (Moonbi), and at Bowling- 

 Alley Point, near Nundle, in serpentine, and has been observed 

 onchromite, at Beadles' Conditional Purchase on Cockburn Creek. 



Lepidomelane. 

 A mineral from Torrington near Emmaville, has been identified 

 by Professor Liversidge, as lepidomelane. It is of a greenish-black 

 colour en masse. Thin laminae transmit a dull greenish light. 

 Laminae rather brittle, very slightly elastic, streak greyish-white. 

 B. B. to black magnetic globule, re-acts for iron and manganese. 



Chalcedony. 

 Bluish-white chalcedony occurs abundantly in nodules in basalt 

 on a ridge about two miles north-west by west from Boggabri, 

 some pieces three inches in diameter, compact, sub- translucent. 

 Also in the gravel beds of the Peel River, at Nundle. Colour 

 bluish-white to milky-white ; some specimens show zonal stricture 

 often hollow. The cavities usually lined with quartz crystals. 



Small, but fine coloured agates, carnelians and chalcedonies 

 occur at ' Dobbikin,' near Millie in the Moree district. They 

 appear to have been liberated by the disintegration of conglomerate 

 rocks in the vicinity, but were probably derived, originally from 

 the trap rocks of the Nandewar Range some few miles to the 



eastward. 



Axinite. 

 Axinite is found associated with epidote, forming small veins 

 in altered slate boulders in Hall's Creek near Bingara, and about 

 two miles north-east from the Hall's Creek Public School. 



Olivine. 

 Fine specimens of olivine exist in basalt near the 'Gum-flat' 

 road, four miles from Inverell. Some pieces an inch in diameter. 



Pleonastk. 

 At about eight miles from Glen Innes on the top of the ' pinch,' 

 Inverell road, a good locality for pleonaste exists. Broken crystals 

 are common on the surface, and specimens of the mineral 

 embedded in the rock (basalt) are readily obtainable. Crystals 

 approaching perfection in regard to crystalline form are rare. 



