Abstract

Macroscopic crystals of felspar are of common occurrence in the granitic area of Northern New South Wales and have been noted by various observers, but so far no crystallographic description has appeared. It is proposed in this paper to describe and illustrate some of the more interesting orthoclase crystals comprised in the Australian Museum collection, plagioclase felspars being reserved for a subsequent article. The specimens figured were with one exception acquired by the Trustees from Mr. D. A. Porter, of Tamworth, to whom also I am under obligation for particulars of their finding and mode of occurrence. Mr. E. 0. Andrews, of the Geological Survey of New South Wales, who possesses an extensive knowledge of the granites of New England, has been good enough to examine the collection, and has given me valuable information regarding the field relations of the rocks in which the felspars are found.

 
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Bibliographic Data

Short Form
Anderson, 1907, Rec. Aust. Mus. 6(4): 265–270
Author
C. Anderson
Year
1907
Title
Mineralogical notes. No. IV. Orthoclase in New South Wales
Serial Title
Records of the Australian Museum
Volume
6
Issue
4
Start Page
265
End Page
270
DOI
10.3853/j.0067-1975.6.1907.1007
Language
English
Plates
plates xlviii–lii
Date Published
23 January 1907
Cover Date
23 January 1907
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Digitized
06 August 2009
Reference Number
1007
EndNote
/Uploads/Journals/16911/1007.enw
Title Page
/Uploads/Journals/16911/1007.pdf
File size: 77kB
Complete Work
/Uploads/Journals/16911/1007_complete.pdf
File size: 1824kB