Hughes's Mine (Hughes Mine), Calaveras Co., California, USA
ReferencesBlake, Wm. P. (1866), Annotated catalogue of the principal mineral species hitherto recognized n California and the adjoining states and territories; being a report of the California State Board of Agriculture. 31 pp., Sacramento: 8, 17.
Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 259.
Dana, Edward Salisbury (1892), System of mineralogy, 6th. ed., 1134 pp., Wiley & Sons, New York: 295.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 93, 252.
| Azurite|| Malachite|
2 entries listed. 2 valid minerals.
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