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| | Journal (issue) | | April 1998
ISSN: 1355-4565
Distinctive gem corundum suites
from discrete basalt fields:
a comparative...comparative study of Barrington,
Australia, and West Pailin,
Cambodia, gemfields
F.L. Sutherland1, D. Schwarz2,...ABSTRACT: Barrington, Australia, and West Pailin, Cambodia, basalt
fields yield remarkably similar 'metamorphic'...with variable relative intensities.
Keywords:
corundum, sapphire, ruby, sapphirine, absorption spectra...(Australia), Pailin (Cambodia)
Introduction
Fast Australia and South East Asia
exploit rich corundum deposits | 👁 Image
| | Book | | Fraquet
Beryl
John Sinkankas and Peter G. Read
Corundum
Richard W. Hughes
Garnet
John D. Rouse
Jet
...Topaz
D. B. Hoover
Butterworths Gem Books
Corundum
Richard W. Hughes
Executive Vice President, Asian...in Publication Data
Hughes, Richard, W.
Corundum.
1. Corundum
I. Title
553.8'4
ISBN 0-7506-1006-9
Library...Cataloging in Publication Data
Hughes,Richard. W.
Corundum/Richard W. Hughes.
p. cm.-{Butterworths gem books)...Bibliography: p.
Includes index
ISB!'i 0-7506-1006-9:
1. Corundum.
I. Title.
II. Series.
QE391.C9H84 1990
553.~c20 | 👁 Image
| | Journal (issue) | | INDO -
SIAM
CHINA
(.HAMPASAK
OlsrRICT
KHA DISTRICT
GULF
SOUTH
OF
CHINA
SEA
SIAM
Fig.
Fig. I...semi-finished
semi-finished stones marked with
the district of origin, and, in two cases, with the names of...note any variation between specimens from each
district.
The sketch map (Fig. 1) showing the southern...commercial importance, the Kha, Champasak,
and Pailin districts. The main concentration of mines is in...being the chief
chief source of zircon, the Kha district
is of particular interest because it is the only | 👁 Image
| | Journal (issue) | | (Emerald)
Beryl
Chrysoberyl
(Q
I
@
Corundum (Ruby)
Corundum (Sapphire)
Diamond
<¤ Garnet
0
Jade...other
continents as well. In Africa, the Kitwe district in
Zambia has become a major source of good,
strongly...production information for this decade is available.
CORUNDUM
Ruby. The classic ruby occurrences of Southeast...Burma [Myanmar]; Chanthaburi, Thailand; and Pailin, Cambodia)continue
to be major producers of ruby, but...especially interesting. These relatively new
sources of corundum have contributed greatly to
our understanding | 👁 Image
| | Journal (issue) | | mine, Kha district
Looi mine, Kha district
Looi mine, Kha district
Looi mine, Kha district
Notes
Natural...mine, Kha district
Finest. Only white after initial heating
6
7
Various, Champasak district
Various...Champasak district
8
9
Various, Champasak district
Pailin district
10
11
12
Looi mine, Kha district
Looi...Looi mine, Kha district
Various, Champasak district
White stones after full heating
Pre-heated to facilitate...pale brown
8
12
9
Various
Champasak
Various Pailin
1 .923-1.983
orangy-white 1.922-1.982
0.061 | 👁 Image
| | Catalog/List | | $1. 50.
New Mexico Socorro County, Hansonberg district
Large white crystal sections, select .......
......................
.
Southern Rhodesia Miami district
Yellow-green hexagonal crystal prisms from
l"...subcæ-bonate
Arizona Yavap~i Co., White Picacho district
Yellow powdery to chalky massive veining
quartz...Tin oxide
New Mexico Sierra County, Black Range district
tlStream tin ti Pure banded brown nodular mass...vitreous luster .....
.
CORUNDUM Aluminum oxide
Canada Ontario, Craigmont, Craig Corundum mines
--r:irge
gray | 👁 Image
| | Journal (issue) | | valued at $8,000.
The case was filed to-day in the district
court.
The jewelry
store of C. P. Albright,...tetrahedral form, high refraction,
hardness above corundum, insensibility to acids,
burning away in oxygen...from the Australian Alps through a gold-bearing district in the
northwestern part of New South Wales; but...resumed.
The occurrence of diamonds in Shan-tung province,
China, has been occasionally noted, and
—
13...the river gravel occur rolled garnets, zircon,
corundum, rutile and tourmaline, with an occa-
sional | 👁 Image
| | Catalog/List | | AERINITE Calcium magnesium iron aluminum silicate
~ Province of Huesca, Estopinian
Blue massive in an_cient......
ALLOPHANE Hydrous aluminum silicate
Seain Province of Barcelona, Station Creu Elorde
Waxy yellow-green...aluminum silicate
Reeublic of South Africa Cape Province, Penge mine
Grayish-green long-fibered mass, considered...hydrated phosphate of calcium and iron
Spain Gcrona Province, Bellaver de Cerdena
Very sharp triclinic xis...material ...........
Arizona Cochise Co. , Swisshelm district
Rich brown to gray massive, some with minor
cerussite | 👁 Image
| | Book (edition) | | extensive fields in the prophetically named Kimberley district of Western
Australia promise to be of world importance...intermediate and acid members of the volcanic province in southern Brazil and
Uruguay, and the fire opals...minerals), and temperatures were high enough, corundum
and spinel may form, and this may be how ruby...particularly in the Yun Yang deposit in Hubei Province, China.
For many years on the basis of experimental...Mining Kimberlite at the Majhgawan deposit,
Panna District, Madhya Pradesh, India
one of a variety of underground | 👁 Image
| | Journal (issue) | | G . C . , 1948. Microscopical distinction of
corundum among its natural and artificial associates.
Analytical...be
equally terminated at both extremities, like corundum. This is confirmed by the crystal shape of the...star
star
ruby-quartz
to be
synthetic/natural
corundum was found to
be aa synthetic/natural
doublet with...the growth and
characterization of flame-fusion corundum.
M.O'D.
493
with artificial resin must be declared...this famous
and mining
m i n i n g of
famous district
district of
of the
northern Pennines of
England this | 👁 Image
| | Catalog/List | | Calcium magnesium iron aluminum silicate.
Spain Province of Huesca, Estopinian.
�ue mass in ancient trap...ALLOPHANE Aluminum and silicon oxide gel.
Spain Province of Barcelona, Creu Olorde.
�arly-pure, pale green...Lead sulfate.
Arizona Cochise County, Swisshelm district.
Rich gray-to-tan replacement of galena with
nodular...subcarbonate.
Arizona Yavapai Co., White Picacho district.
Yellow powdery-to - chalky massive with
beyerite...CASSITERITE stream Tin
Taylor Creek, Black Range district
Sierra County, New Mexico
Dark brown botryoidal | 👁 Image
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