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| | Report (issue) | | Resources of the
Owyhee Canyon and South Fork
Owyhee River Wilderness Study Areas,
Elko County, Nevada, and...and
Owyhee County, Idaho
U.S. GEOLOGICAL SURVEY BULLETIN 1719-F
?-**(&' j*r\
Chapter F
Mineral Resources...Resources of the
Owyhee Canyon and South Fork
Owyhee River Wilderness Study Areas,
Elko County, Nevada, and...and
Owyhee County, Idaho
By EUGENE E. FOORD, MICHAEL J. LUESSEN,
DIRK S. HOVORKA, JOSEPH L. PLESHA,
V.J...RESOURCES OF WILDERNESS STUDY AREASOWYHEE RIVER REGION, IDAHO AND NEVADA
DEPARTMENT OF THE INTERIOR
DONALD PAUL | 👁 Image
| Viney, Mike, Dietrich, Dagmar, Mustoe, George, Link, Paul, Lampke, Thomas, Götze, Jens, Rößler, Ronny (2016) Multi-Stage Silicification of Pliocene Wood: Re-Examination of an 1895 Discovery from Idaho, USA. Geosciences, 6 (2) 21 doi:10.3390/geosciences6020021 | Journal (article/letter/editorial) | | Wood:
Re-Examination of an 1895 Discovery from
Idaho, USA
Mike Viney 1,2, *, Dagmar Dietrich 3 , George...
Poudre School District, Ft. Collins, CO 80526, USA
College of Natural Sciences Education and Outreach...Colorado State University, Fort Collins,
CO 80526, USA
Professur Werkstoff- und Oberflächentechnik, Technische... Bellingham, WA 98225, USA; mustoeg@wwu.edu
Department of Geosciences, Idaho State University, Pocatello...Pocatello, ID 832091, USA; linkpaul@isu.edu
Institut für Mineralogie, Technische Universität Bergakademie | 👁 Image
| | Report (issue) | | Mineral Resources of the Owyhee Canyon
Wilderness Study Area,
Malheur County, Oregon
U.S. GEOLOGICAL...Mineral Resources of the
Owyhee Canyon Wilderness Study Area,
Malheur County, Oregon
By JAMES G. EVANS...RESOURCES OF WILDERNESS STUDY AREAS:
OWYHEE RIVER REGION, IDAHO AND NEVADA
DEPARTMENT OF THE INTERIOR...Mineral resources of the Owyhee Canyon Wilderness Study
Area, Malheur County, Oregon.
U.S. Geological...Mines and mineral resources Oregon Owyhee Canyon
Wilderness. 2. Owyhee Canyon Wilderness (Or.) I. Evans | 👁 Image
| | Journal (article/letter/editorial) | | Western Washington University, Bellingham, WA 98225, USA; mustoeg@wwu.edu; Tel.: +1-360-650-3582 Received:...wood from the Yellowstone National Park, Wyoming, USA; no relict tissue was visible in silicified alder...or from unidentified fossil wood from New Mexico, USA; two taxonomically unidentified samples from unknown...the same specimen. A fifth specimen, from Kansas, USA, was mineralized with calcite; treatment with hydrochloric...transverse orientation. Devonian, Woodford Shale, OK, USA. This new thin section is similar to the specimen | 👁 Image
| | Journal (article/letter/editorial) | | Silicification, quartz-adulariaillite
Quartz, chalcedony, adularia
Sulfide abundance
Sulfidation-state...condensate Opal/chalcedony, alunite,
kaolinite, smectite
H2S-bearing steam condensate Opal/chalcedony
H2S-bearing...chloride water
Opal/chalcedony
Calcite, aragonite
Opal/chalcedony
Opal/chalcedony
Taken from references...powdery opaline silica, alunite, and/or kaolinite (Fig. 4b), depending on solution pH. The opaline silica...diagenetically
transformed to microcrystalline quartz (chalcedony; White
et al. 1956), forms at pH 2–3, whereas | 👁 Image
| | Journal (article/letter/editorial) | | studied, but also in high magnesium clays and opaline cherts. This paper
provides a dynamic model for...containing limestones, sepiolite, dolostones and opaline cherts were examined; these represent the
entire...and siltstones are affected by silicification (opaline
levels formed mainly by selective replacement of...silicification of the sepiolite produced lenticular opaline levels that were locally
transformed to quartz...sepiolite becoming completely silicified. The opaline levels clearly preserve the structure of the limestones | 👁 Image
| | Book (edition) | | visible to the eye.
In the great lava flows of Idaho, Oregon and Washington occur
the
many types of...mine, Racooche
Valley, White Co.
1866
Vs
White County
Daniel Light form,
% mi. NE
Less than
1887
...Alabama has yielded a 4i%4 carat diamond from Shelby
County, 30 miles south of Birmingham, found about 1900...Siding in St. Clair County, 20 miles northeast of Bir-
mingham. One found in Lee County in 1901 weighs 4^...come from a cornfield at Pounding Mill, Tazewell
County, Va.
A 3 carat stone, bought by a Knoxville, Tenn | 👁 Image
| | Book | | MINERALS^
of Idaho
with field trip j&
maps
by
John A.fl£.jkwith
Gem Minerals of Idaho, designed for...for beginners and
for those collectors visiting Idaho for the first time, is a
guide to some of the countless...areas, like the star garnet diggings of
Latah County and the Spencer Opal Mine, charge a digging fee...more gem mineral-forming forces than
Idaho," a fact that makes Idaho a gem hunter's paradise.
COVER PHOTOS...less valuable. However, fine
GEM MINERALS OF IDAHO
44
pin-fire white opals are valuable
and those | 👁 Image
| | Report (issue) | | Washington
County, Idaho
GEOLOGICAL
SURVEY
BULLETIN
Prepared in cooperation with the
Idaho Bureau of...QUICKSILVER DEPOSITS NEAR WEISER,
WASHINGTON COUNTY, IDAHO
By CLYDE P. Eoss
ABSTRACT
The quicksilver deposits...the general vicinity of Weiser, Washington County,
Idaho, were first recognized about 1936. They are...the United States. The mine was operated by
the Idaho Almaden Mines Co. through December 1942. As yet...quicksilver deposits near Weiser, Washington County, Idaho,
(fig. 7) appear to have been first discovered | 👁 Image
| | Book | | .............................
Facies I-First chalcedony layer ..........................................86
.88
.89
90
Chapter 4 - Genesis of first chalcedony layer ...................
97
Structures and... . . . . . . . . . .109
Genesis of the first chalcedony layer (facies 1) ..............................of agates and chalcedonies .............
147
Chalcedony without bands .........................................
147
Banded agates without the first chalcedony layer .........................
151
Lace Agates | 👁 Image
| | Journal (article/letter/editorial) | | examples from
Yellowstone National Park, Wyoming, USA
Sean A. Guidry *, Henry S. Chafetz
Department of...Rm. 312, University Park, Houston, TX 77204-5007, USA
Received 7 June 2001; accepted 29 March 2002
Abstract...springs; Siliceous sinter; Yellowstone; Microbes; Chalcedony
1. Introduction and significance
Research into...spring
systems is Yellowstone National Park, Wyoming,
USA. Hot springs that precipitate amorphous hydrated...Fig. 1. Map of Yellowstone National Park, Wyoming, USA. Major
areas of interest include the Norris Geyser | 👁 Image
| | Journal (article/letter/editorial) | | Miocene Petrified Wood from Central
Washington State, USA
George E. Mustoe 1, *
and Thomas A. Dillhoff 2
1...Bellingham, WA 98225, USA
Evolving Earth Foundation, P.O. Box 2090, Issaquah, WA 98207, USA; tdillhoff@evolvingearth...Basalt Group (CRBG) in central Washington State, USA. These fossil localities
are well-dated based on...silica minerals that include opal-A, opal-CT, chalcedony, and macrocrystalline quartz. Some
specimens...Some woods are mineralized only with chalcedony;
however, chalcedony and macrocrystalline quartz are common | 👁 Image
| | Journal (article/letter/editorial) | | Article
2
Near infrared signature of opal and chalcedony as a proxy for
their structure and formation...MANGOLD
1
4
Abstract: Opal-A, opal-CT and chalcedony develop in various geological environments mainly...criterion distinguishes the formation process of opaline silica. The originality of this study is based...spectroscopic criteria distinguish opal-A, opal-CT and chalcedony: the
apparent maximum of the absorption at 5200...34
35
36
37
38
39
Opals and chalcedony are different types of opaline silica
found in various geological | 👁 Image
| | Journal (issue) | | Tradition tells us that l\Iine Ln :\fotte, in ll'adison County, )lissouri, wns first worked by
the Spaniards,...kangaroo discovered a bright bit of opal
fl.oat in the county of Yungnulgra about
sixty-five miles northwest...at Kandir and Kodegaon .
Opals are f ound with chalcedony,
carnelian, and amethyst near H yderabad
City...does not form as
quartz, b ut as either opal or chalcedony.
Opal is also n ot infrequently common in
the...opal mining conditions in
Virgin Valley, Humboldt County.
Honduras
It is impossible here to describe all | 👁 Image
| | Book (edition) | | of
OREGON
e
WASHINGTON
BRITISH COLUMBIA
• IDAHO
BY
H. C. DAKE
Editor
Emeritus,
With
THE MINERALOGIST...Localities
Beaches
Map of Oregon Beaches
JACKSON COUNTY
A Mineral Mecca
Mop of Josephine and
Jackson Counties...Locality
~hodonite
Table Rock Mountain
JOSEPHINE COUNTY
Josephinite
Oregonite
Althouse Creek
CENTRAL OREGON...Ochoc::i D;ggings
Post District
Antelope Locality
County Quarry
Brown's Ranch
Crystal Hills
Clarno Road...Mile Hill
Sunflower Flat
EASTERN OREGON
Malheur County
Sucker Creek Locality
Skull Spring
Fossils
Mop | 👁 Image
| | Report (issue) | | Enfield Bell mine, Jerritt Canyon district, Elko County, Nevada.
�
Geology of the Enfield Bell Mine and...and the Jerritt Canyon District, Elko County, Nevada
97
Lower-plate rocks
Lower-plate stratigraphy within...composed of carbon, pyrite
euhedra, and fibrous chalcedony, 0.5 cm thick and 2 to
5 cm long, oriented parallel...Bell Mine and the Jerritt Canyon District, Elko County, Nevada�
sparse, has been observed in the thinner...Bell Mine and the Jerritt Canyon District, Elko County, Nevada�
EXPLANATION
Ocl�
Colluvium (Quaternary) | 👁 Image
| | Journal (article/letter/editorial) | | Western Washington University, Bellingham, WA 98225, USA; mustoeg@wwu.edu Abstract: For many decades, wood...silicification; fossil wood; opal-A; opal-CT; chalcedony; quartz 1. Introduction Citation: Mustoe, G...crystallization (opal-C/opal-CT); microcrystalline quartz (chalcedony) is considered to be the result of diagenetic...from Red Hills Lignite Mine, Chocktaw, Missouri, USA. The multilayered architecture of the cell walls...some precious opals from Virgin Valley, Nevada, USA) owe their fragility to relatively high levels of | 👁 Image
| | Journal (article/letter/editorial) | | the Sündikendağı deposit of moganite-rich, blue chalcedony
nodules, Mayıslar–Sarıcakaya (Eskişehir), Turkey...Museum, Centre for Mineralogy, Albany, NY 12230, USA
d
Dumlupınar University, Faculty of Engineering,...Keywords:
Turkish gem blue chalcedony
Sündikendağı deposit
Sedimentary chalcedony nodules
XRD
Oxygen isotopes...Sarıcakaya–Eskişehir (Turkey)
a b s t r a c t
Blue chalcedony nodules have been mined from the Sündikendağı...appear to have had little influence on the blue chalcedony nodules that make the deposit valuable other | 👁 Image
| | Journal (article/letter/editorial) | | 216
Contraction due to final crystallization of opaline cherts.................................... 217...cherts as
they pass from a stiff gel into the true opaline phase, have been collected
by the writer in the...alternating with chalcedony or, more rarely,
almost pure opal. The relatively pure bands of chalcedony (or opal)...separated by narrower concentric bands of fibrous
chalcedony or opal. In form they vary from almost spheroidal...ig u re 1.-— Block diagram of ideal spheroid
chalcedony, and the white background, normal chert or porcelanite | 👁 Image
| | Journal (article/letter/editorial) | | euhedral crystals associated with analcime, chalcedony, and opaline silica in amygdules. Anorthoclase
feldspar...amygdules are analcime, calcite, silica phases
(chalcedony and opaline silica, and possibly volcanic glass) and...amygdules associated with calcite, chalcedony, amorphous
(opaline) silica, and an unidentified fibrous...the amygdules, with chalcedony in the center, followed outward by mixed opaline
silica and/or calcite...minerals such as analcime, calcite, opaline silica and
9
chalcedony (Figs. 5a-j). EPMA analyses showed | 👁 Image
| | Journal (article/letter/editorial) | | Geosciences, Auburn University, Auburn, AL 36849, USA
Department of Geology and Environmental Earth Science...Science, Miami University, Oxford, OH 45056, USA;
burkeml2@miamioh.edu
Correspondence: saundja@auburn.edu;...made
from
oresfrom
fromores
thefrom
southeastern
USA [37]
recently,
similar
genetic interpretations
been...might be. The western United
States of America (USA) in general, and Nevada in particular, hosts numerous...Se-rich LS epithermal ores include Silver City, Idaho; Republic, Washington; and Hishikari, Kushikino; | 👁 Image
| | Journal (article/letter/editorial) | | Cherokee Ranch Fossil Forest, Central Colorado, USA George E. Mustoe 1, * and Mike Viney 2 1 2 * Geology... Bellingham, WA 98225, USA Poudre School District, Ft. Collins, CO 80526, USA; mviney@psdschools.org...in 2010 on private property in central Colorado, USA, has not previously been described in scientific...filled with chalcedony or crystalline quartz; tracheid lumina may contain opal or chalcedony. Specimens...Specimens from 5 other logs contain quartz/chalcedony, but relict textures suggest cell walls were originally | 👁 Image
| | Report (issue) | | with this andesite in figure
2. Chalcedonic and opaline hot-spring sinter deposits
occur over large parts...sediments, as shown
in drill core. The opal and chalcedony veinlets are
largely restricted to depths of...Veins
up to 2 l/2 m thick of interlayered quartz, chalcedony,
and calcite are relatively common at greater...area. The youngest sinter deposits are porous opaline above surrounding areas of alluviation. Interpreted...White, Thompson, and Sandberg
peratures, and time, opaline sinter is first converted 1964).
to /3-cristobalite | 👁 Image
| | Report (issue) | | History of
Steamboat Springs Thermal
Area, Washoe County
Nevada
GEOLOGICAL SURVEY PROFESSIONAL PAPER 458-B...History of
Steamboat Springs Thermal
Area, Washoe County
:
I
Nevada
By DONALD E. WHITE, G. A. THOMPSON...history of Steamboat
Springs thermal area, Washoe County, Nevada, by Donald
E. White, G. A. Thompson, and...history of Steamboat Springs thermal
area, Washoe County, Nevada. 1964.
(Card 2)
1. Geology-Nevada-V\Tashoe... Title: Steamboat Springs thermal area, Washoe
County, Nevada.
(Series)
For sale by the Superintendent | 👁 Image
| | Book (volume) | | Rock-Crystal, 192
Fine-Grained Varieties, 195
Chalcedony, 195
Structure, 195
Optical Properties, 195...The structural identity of chalcedony with quartz and
of calcined chalcedony and quartz with cristobalite...identical twisted fibers of
quartz found in some chalcedony are even more remarkable. These fibers,
often...microscopic dimensions (see ris Agate, under Chalcedony).
References
1. Frondel:
2. Frondel:
3. Billows:...Bolivia, in sulfide veins;
and at Hamburg, Cochise County, Arizona.
Small
twins up to 1.5 mm. in size occur |
|
