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Opal from
Denny Mountain, Snoqualmie Mining District, King County, Washington, USA


Locality type:Mountain
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Denny Mountain, Snoqualmie Mining District, King County, Washington, USA
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:91902
Long-form Identifier:1:3:91902:7
GUID (UUID V4):b8993a32-0645-4d31-8b69-c365f1c8ef17
Localities for Opal in this Region
Denny Gulch, Denny Mountain, Snoqualmie Mining District, King County, Washington, USA
Nearest other occurrences of Opal
1.0km (0.6 miles) ā“˜Denny Gulch, Denny Mountain, Snoqualmie Mining District, King County, Washington, USA
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
that occur in beautiful specimens in Washington. minerals Washington Mineral Locality Index L A N N Y R...okanoganite-(Y), and zektzerite, all from Washington Pass in Okanogan County ā€”which are known only from the state;...in Snohomish County, ferritungstite from Germania mine near Fruitland in Stevens County, and paulingite...from Rock Island Dam near WenatĀ­ chee in Douglas County. In addition, many localities proĀ­ duce fine-quality...only been known for a decade or two. Whereas metal mining has led to the discovery of some of these mineral
Journal (issue)
with pyrite, 7 cm, from Spruce Ridge, King County, Washington; Rick Dillhoff collection; Jeff Scovil...photo. Amethyst scepter, 17 cm, from Petersen Mountain, Nevada; Brianna and Brendan Traw collection....left) Mesolite, 5.1 cm, from the F-Line quarry, Washington; John Cornish collection. Elbaite, 7 cm, from...Pacific Northwest; that is, the states of Oregon, Washington, Idaho, Alaska and the Canadian Provinces of...prospectors. All of this activity gave a jump-start to mining interests and prospecting in the lands of the Pacific
Book
Bart Cannon 1975 CORD ILLERAN Mercer Island, Washington Lilli liliiiLt' 111? KLi-KlLLLIlrVlIlI Copyright...Cordilleran 18 Holly Hill Drive Mercer Island, Washington 98040 COVER ILLUSTRATION: Amethyst scepter heads...growing upon milky quartz stems. Denny Mountain area of King County. Specimen from the collection of...publications dealing with the various aspects of Washington State's diverse mineral wealth exist, but none..."Minerals of Washington" represents an attempt to begin such a cataĀ­ logue. "Minerals of Washington" shall
Journal (issue)
Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...COPPER, 8.3 cm, from the Central mine, Keweenaw County, Michiganā€”considered by some to be the worldā€™s... Epidote and Associated Minerals from Green Monster Mountain, Prince of Wales Island, Alaska Chapter authors...epidote crystals were first found on Green Monster Mountain, Alaska, by hardy prospectors looking for copper...within a skarn complex on privately owned patented mining claims which cover the mountainā€™s top, upper sides
Journal (article/letter/editorial)
tridymite, crystobalite, coesite, and stishovite. Opal is sometimes grouped with quartz, as it is composed...important source of quartz was at Sakangyi, Katha District, Burma. Frondel (1962) mentions clear quartz masses...had alĀ­ ready become a brisk trade in the 1800s. Mining of optical quartz in the area has also been important...during metamorphic activities associated with mountain building (Weibel, 1966). An earĀ­ lier, long-prevailing...Figure 6 (above): Pyrite and quartz from King County, Washington. The pyrite is 6 cm across. Stan Woollams
Journal (issue)
GOLDā€”1 02. - large crystals $3,500 - Calaveras County, Calif. GOLD on Quartzā€”$1,400 Crystal Mine, Angels...GOLDā€”1.4 oz. mass, large crystals $3,200 - MaĀ­ dera County, Calif. GOLD on Quartzā€”$2,750 Crystal Mine, Angels...by Peter B. Leavens and Richard W. Thomssen Denny Mountain Quartz.......................................38 by Wendell E. Wilson and John S. White, Jr. Mining Claims for the Mineral Collector.................Reno, Nev. 89503 Introduction The Copper Mountain mining district, Prince of Wales Island, Alaska, was active
Journal (article/letter/editorial)
cast replica of a ā€œbig trackā€ fossil found in Washington and petrified wood samples. Visitors learn how...Left: Large cabinet-sized quartz, Denny Mountain, King County, Washington; Landers/Maykut specimen, Rudy...twin, 10 Ɨ 9 Ɨ 8 cm, Mount Teneriffe, King County, Washington; Lindell specimen, Mark Mauthner photo...the date! The Whatcom Museum, in Bellingham, Washington, is currently presenting a mineral exhibition...Yale Mineral & Gem Symposium October 16-18, 2020 Opal, Mayneside, Queensland, Australia. YPM MIN. 058535
Report (volume)
and sapphire are considered precious gems. Some opal is precious, but most varieties are semiprecious...streams, and eventually deposited as alluvial gravels. Opal and agate are formed from aqueous solutions. Diamonds...Del Norte County; Trinity River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville...Dorado County; Cherokee Flats, Yankee Hill,and Oroville, Butte County; French Corral, Nevada County; Indian...Indian Gulch and Volcano, Amador County; and Alpine Creek, Tulare County. Other western localities are:
Journal (issue)
Wbndeil E. Wilson Associate Editors Pete J, Dunn Washington, DC Peter G. Embrey British Museum (N.H.) London...Department of Mineral Sciences Smithsonian Institution Washington, DC 20560 Mineral clubs and societies have a...lived, was in the center of early Maine pegmatite mining. However, over the course of a century, almost...Carter, Superintendent o f the National Tin and Mining Company of the U.S., in Paris Hill, Maine, covers...962-5286 Quality Mineral Specimens Roy Grayson 5135 Washington Hillside, Illinois 60162 (312) 449-1399 Wholesale
Journal (issue)
comprehensivelook at Coscuez, its history, geology, mining activities, and the emeralds found there. Photo...Robert Crowningshield New York, NY Pete Dunn Washington, DC Dennis Foltz Santa Monica, CA Chuck Fryer...COLOMBIAN EMERALDS By Ron Ringsrud The Muzo emerald district, i n Boyacd, Colombia, contains several mines...and both are currently exploited using open-cut mining methods. The Cosczzez emeralds are similar to Muzo...used to describe the best. Yet Colombia's Muzo district actually encompasses several mines, of which two
Book
desires. Sometimes the talus slopes at the base of a mountain contain rich indications of a dike or sill above...famous was the single beryl stone found in Oxford County in Maine that weighed 18 tons and was 18 feet in...with its porous structure has a distinctive look. Opal in its most elegant form is a semitransparent stone...It ā€œcabsā€ well. Labradorite reminds one of fire opal that has become gentle. Rather than flashing colors...the collector wants an experience of unsurpassed mountain scenery and wild life in addition to perhaps finding
Report (issue)
Publisher Lithographie, Ltd. Denver, Colorado, USA Design and Layout Gloria A. Staebler Ā© 2012 Lithographic...Lithographic, Ltd. PO Box 11613 ā€¢ Denver, CO 80211 ā€¢ USA Phone: 1.303.495.5521 ā€¢ Fax: 1.303.482.1238 W\\w...also had its detractors. Christian IV (1577-1648), King of Denmark and Norway and Duke of Schleswig-Holstein...Hallelujah Junction (aka Peterson Peak), Washoe County, Nevada, was cut by Bob Spomer and offered for...A 202.48-carat oval from Statesville, Alexander County, North Carolina, is also in the Smithsonian (G1286)
Book
Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...ALABAMA Iron phosphate mineral locality at Indian Mountain, Alabama (by H. Harwood) 5:241-244 Iron-manganese...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73...18:65-74 Phosphate microminerals of the Indian Mountain area [Georgia and Alabama] (by J.B. Gordon, Jr...ALICE GLORY HOLE The Alice glory hole, Clear Creek County, Colorado (by T. A. Hanson & W. B. Craft) 18:185187
Book (edition)
MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...included contain such specific details as farm roads, mountain paths, stretches of stream beds, and easily identifiable...Cascades and the Grand Canyon, the Oregon and Washington beaches, the Mojave desert of California and...North Carolina, a big diamond or two in Arkansas, opal in Idaho, and so on. Old locations suddenly are...eye of the microscope. A few gem materials notably opal and obsidian are amorphous, lacking crystal structure
Book (volume)
North Dakota, ā€” ; Oregon, South Dakota, Washington, and Wyoming ~ AllanW Eckert b i or d ...Nebraska, North Dakota, Oregon, South Dakota, Washington, and Wyoming VOLUME 4: THE SOUTHWESTERN QUADRANT...Allan W. Eckert Bayou Backwaters Blue Jacket The King Snake The Owls of North America The Conquerors...Nebraska, North Dakota, Oregon, South Dakota, Washington, and Wyoming by Allan W. Eckert Ml PERENNIAL...York Cambridge, Philadelphia, San Francisco, Washington London, Mexico City, Sao Paulo, Singapore, Sydney
Journal (issue)
, and D. R. Cook Hyalite from the Spruce Pine District, North Carolina ................................between the covers. The Library of Congress in Washington, D .C ., estimates that one-third of its 18 million...Department of Mineral Sciences Smithsonian Institution Washington, D.C. 20560 C. Wroe Wolfe Department of Geology...Foote Mineral Company spodumene mine, near Kings Mountain, North Carolina, and from the Dunton Gem mine...Bavaria, Germany (1) Blue Chihuahua mine, San Diego County, 57-59% California (2) 67-80% Poland, Maine (3)
Journal (issue)
NJ) Scott Fadrowski and Bob Thompson, Renowned Mining (Socorro, NM) Benny Fenn (Colonia Juarez, Mex.)...(Columbus, OH) Reo N. Pickens (Waukegan, IL) Plumbago Mining, Ann and Dean McCrillis (Rumford, ME) Frederick...trips. Back at home between trips he copes with a mountain of correspondence bringing new and hitherto unpublished...Chief mine, Pala, California Red Ledge mine, Washington, California Benitoite Gem mine, San Benito Co...dangerous and fascinating atmosphere of underground mining, the flavor of local cultures, and the historical
Book
long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted
Book
HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey topographic...obtained from the VS for DC Forest Service, Washington, Canada 20415, l^aps from the Geological ...could think of. With increasing technical skill, mining and shaping of minerals be- came increasingly
Journal (issue)
pocket in 1955 at least 25 others were found as mining progressed. The contents of these, which ranged...our tourmaline. Dale [Sweatt] went down off the mountain today and rented the two largest safe deposit...Colorado, and their most publicized effort, the mining of variscite nodules at Fairfield, Utah (the type...so Frank was quite familiar with techniques for mining it. After a careful examination of the quarry,...Spruce Peak, King County, Washington, 1977 Beautiful pyrite and quartz specimens are Washington classics
Journal (issue)
Inesite, a new U.S. occurrence near Creede, Mineral County, C o lo ra d o ..................................austinite, and plumbian conichalcite from La Plata County, Colorado .......................................Tucson, Arizona, a major western focal point for mining and mineral collecting activity, not to mention...the Mineralogical Record Inc., will continue in Washington, DC, as curator of minerals at the Smithsonian...Institution (Department of Mineral Sciences, Washington, DC 20560). Staff telephone numbers are now as
Journal (issue)
diamond saw blades start as thm as 006"'' Ideal tor opal sĀ· S7.75 PLASTIC LAPS Flat as a sheet of glass...and squirrels along the way. At the base of the mountain, on which the mine was located, was a wide sand...allowed on the flat- bed for the steep trip up the mountain to the claim. This is where everyone got to be...roughed continued on page 24 By Vi Wilhelmsen Amador County Gem and M ineral Society Six years ago, after...after much discussions, our club, The Amador County Gem and Mineral Society, decided on a project - a gemstone
Book
topographic map of the Delaware q uadrangle o f Keweenaw County, Michigan This ,s an example o f the more picturesque...can be obtained from the U.S Forest Service, Washington, DC 20415. Maps for Canada are obtainable from...could think of. With increasing technical skil l, mining and shaping of minerals became increasingly important... Rarely are collectors allowed to get near the mining machinery or the miners at work. Keep away fro...bound to discover marvelous walks in beautiful mountain country. filled with delightful views, and there
Journal (issue)
T h e N atural History M useum of Los A ngeles County 487 b y P e te r C K e lle r a n d A n th o n y...mineralogist of California. He headed the state mining bureau from 1880 to 1886 and his contributions...served on the staff of the Carnegie Institute in Washington, D.C., and the USGS, and finally as professor...O ft ovnas 2>. T a L c r Clay C enter, Ottawa County, Ohi o. n a m e P \d )rQ tn Q h fih i Ā£ < ?...Death Valley, to the east of Searles Lake, in Inyo County, has very similar climatic conditions: hot and
Journal (issue)
NJ) Scott Fadrowski and Bob Thompson, Renowned Mining (Socorro, NM) Benny Fenn (Colonia Juarez, Mex.)...(Columbus, OH) Reo N. Pickens (Waukegan. IL) Plumbago Mining, Ann and Dean McCnllis (Rumford. ME) Frederick...dangerous and fascinating atmosphere of underground mining. the navor of local cultures. and the historical...trips. Back at home between trips he copes with a mountain of correspondence bringing new and hitheno unpubli...Chief mine, Pala, California Red Ledge mine, Washington, California Benitoite Gem mine, San Benito Co
 
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