FAQ

EN

▼
FR
DE
JP
RU

WEBSITE

RULES

Website Rules and Code of Conduct

Ales Patrick Krivanek (webmaster) it's not allowed to make changes or additions to individual profiles of participating miners and other participating professionals without their express written permission.
Once a written request for a change, addition or deletion is received from a miner or any other participating professional, Ales Patrick Krivanek (webmaster) will implement the requested changes, additions or deletions within a reasonable amount of time, typically 2 to 5 business days.
Ales Patrick Krivanek (webmaster) will quickly remove a profile or a section thereof if such a change or action is requested by the profile owner.
Each participant is fully and completely responsible for the content of their own business profile including photographs, videos and their description. Ales Patrick Krivanek (webmaster) cannot be held legally or otherwise liable for the content of any participating professional as long as the information contained in the website regarding that specific participant has been approved by them in writing.
Each participant must obey basic rules of conduct and avoid language or material that is offensive in the website. This includes but is not limited to:
1. the use of offensive or inappropriate language in participants business profile
2. any and all references to competition in participants business profile
3. promoting false claims, untrue or misleading information
4. any attempt to hurt or diminish the importance of any other business or participating entity including the OregonSunstoneGuide.com website
All participants can frequently update or change their business profiles, add or remove pictures or request removal of their profile entirely. All such changes will be done in a timely manner by the participating webmaster under the supervision and advice of a three-person oversight committee.
We urge all participating artisans, miners and professionals to make frequent updates to their profiles. We will do our best to implement all update and changes quickly, and your profiles will motivate visitors and customers to re-visit the site frequently.

PUBLICATIONS

oregon sunstone PUBLICATIONS

Robert

James

ROBERT JAMES FGA, GG

Publication Title:

Name of the Author:

About this Book:

Our Recommendation:

Where to Buy:

Oregon Sunstone

Robert James FGA, GG

Oregon Sunstone is the Official State Gemstone of Oregon, and one of the rarest and most valuable gemstones on the planet. Few people inside or outside of Oregon truly understand the story behind this unique gemstone and the amazing people who mine it. This book tells the story of six years of the author's travels throughout the gemstone producing region of the RabbitBasin of the Oregon High Desert in Southeastern Oregon. Join the author on a journey to learn the formation and history of Oregon Sunstone, and meet the miners who left all comforts of home behind to go to a desert wilderness to find this wonderful treasure of the earth.

Please support the rich history and accomplishments of the Oregon Sunstone community by purchasing, reading, and telling all your friends about this world class book about Oregon Sunstone. We can not say enough good things about how projects like this help all of us.

blurb.com

Little Eagle Butte Sunstone - A New Opportunity for Fee Digging in Oregon >

There are 4 sections, Part I - Popular Articles, Part II - Books, Part III - GIA Articles, Part IV - Scientific Journal Articles

Part I - POPULAR ARTICLES

InColor Magazine (Winter 2020) - Oregon Sunstone - A Rare and Beautiful American Gemstone

Revue De Gemmologie A.F.G. (N°207) - L’Oregon Sunstone ou la renaissance d’un phénix

Part II - BOOKS

Richard W Wise - Secrets of the Gem Trade The Connoisseur's Guide to Precious Gemstones

Renee Newman - Exotic Gems How to Identify and Buy Tanzanite, Ammolite, Rhodochrosite, Zultanite, Sunstone, Moonstone & Other Feldspars (Newman Exotic Gem Series)

Robert James - Oregon Sunstone

Part III - GIA ARTICLES

Videos and Pictures of sunstone on GIA site and all their articles:

PART IV - SCIENTIFIC JOURNAL ARTICLES

Alt D.D, Hyndman D.W. (1978) Roadside Geology of Oregon. Mountain Press Publishing Co., Missoula, MT. ▶︎ Amazon
Brueseke M.E., Heizler M.T., Hart W.K., Mertzman S.A. (2007) Distribution and geochronology of Oregon Plateau (U.S.A.) flood basalt volcanism: The Steens Basalt revisited. Journal of Volcanology and Geothermal Research, Vol. 161, No. 3, pp. 187–214 ▶︎ ScienceDirect
Emmett J.L., Douthit T.R. (2009) Copper diffusion in plagioclase. GIA Thailand, August 21 ▶︎ pdf
Gunn B.M., Watkins N.D. (1970) Geochemistry of the Steen Mountain Basalts, Oregon. Geological Society of America Bulletin, Vol. 81, No. 5, pp. 1497–1516. ▶︎ Amazon
Hofmeister A.M., Rossman G.R. (1985) Exsolution of metallic copper from Lake County labradorite. Geology, Vol. 13, No. 9, pp. 644–647 ▶︎ GeoScienceWorld
Johnston C.L., Gunter M.E., Knowles C.R. (1991) Sunstone labradorite from the Ponderosa mine, Oregon. G&G, Vol. 27, No. 4, pp. 220–233 ▶︎ pdf
McClure S.F. (2009) Observations on identification of treated feldspar. GIA Thailand, September 10 ▶︎ pdf
Peterson N.V. (1972) Oregon sunstones. Ore Bin, Vol. 34, pp. 197–215 ▶︎ pdf
Pough F.H. (1983) Heliolite, a transparent facetable phase of calcic labradorite. Journal of Gemmology, Vol. 18, No. 6, pp. 503–514 ▶︎ pdf
Rossman G.R. (2011) The Chinese red feldspar controversy: Chronology of research through July 2009. G&G, Vol. 47, No. 1, pp. 16–30 ▶︎ pdf
Sinkankas J. (1997) Gemstones of North America: Volume III. GeoScience Press Inc., Tucson, AZ. ▶︎ Amazon
Stewart D.B., Walker G.W., Wright T.L., Fahey J.J. (1966) Physical properties of calcic labradorite from Lake County. The American Mineralogist, Vol. 51, January–February, pp. 177–197 ▶︎ pdf
Walker G.W. (1979) Revisions to the Cenozoic stratigraphy of Harney Basin, Southeast Oregon. Geological Survey Bulletin 1475, United States Department of the Interior, Washington DC, 35 pp ▶︎ pdf

Abduriyim, Ahmadjan (2009) Characteristics of red andesine from the Himalaya Highland, Tibet. Journal of Gemmology, v. 31, n. 5-8, pp. 283-298 ▶︎ pdf
Abduriyim, Ahmadjan; McClure, Shane F.; Rossman, George R.; Leelawatanasuk, Thanong; Hughes, Richard W.; Laurs, Brendan M.; Isatelle, Flavie; Scarratt, Kenneth; Dubinsky, Emily V.; Douthit, Troy R.; Emmett, John L. (2011) Research on gem feldspar from the Shigatse region of Tibet. Gems & Gemology, v. 47, n. 2, pp. 167-180 ▶︎ pdf
Abduriyim, Ahmadjan (2009) Mine trip to Tibet and Inner Mongolia: Gemological study of andesine feldspar. GIA Website ▶︎ pdf
Abduriyim, Ahmadjan (2009) Natural color andesine-labradorite from Tibet and Inner Mongolia. InColor, pp. 32-36 ▶︎ pdf
Arem, Joel E. (2009) Meet the feldspars: The gem kingdom's next rock star dynasty. Colored Stone, v. 22, n. 6, pp. 14-23
Barth, Thomas Frederik Welby (1969) Feldspars. Wiley-Interscience, New York.
Brace-Thompson, J. (2012) Special effects: Aventurescence. Rock & Gem, Vol. 42, No. 8, p. 39
Bracewell, Hylda (2009) Rare Australian gemstones: Moonstone. Gemmology Queensland, v. 10, n. 6, pp. 21-29.
Cao, Y. (2006) Study on the feldspar from Guyang County, Intermogolia [sic] and their color enhancement.
Chadwick, Karen M.; Breeding, Christopher M.; Simmons, William B. Skip; Falster, Alexander U.; Laurs, Brendan M. (2008) Gem news international: Green sodic plagioclase from East Africa. Gems & Gemology, v. 44, n. 1, pp. 83-85.
Choudhary, Gagan (2009) Aventurine K-Feldspar. Midland Focus, n. 14, pp. 13-17.
Clark, Gail O. (2003) Labradorite or spectrolite? Rock & Gem, v. 33, n. 8, pp. 64-67.
Emmett, John L.; Douthit, Troy R. (2009) Copper diffusion in plagioclase. GIA Website
Federman, David (2009) Feldspar's flying colors. Colored Stone, v. 22, n. 6, pp. 30-33.
Federman, David (2006) Gem profile: Andesine. Modern Jeweler, v. 105, n. 3, pp. 45-46.
Federman, David (2008) Gem profile: Oregon sunstone. Modern Jeweler, v. 107, n. 6, pp. 57-58.
Federman, David (2009) Northern lights. Colored Stone, v. 22, n. 5, pp. 7-8.
Federman, David (2002) Tanzanian sunstone. Modern Jeweler, v. 101, n. 11, pp. 25-26.
Feldspar mineralogy (1983) Mineralogical Society of America, Washington, D.C.
Feldspaths: Histoire, cristallochimie, minéralogie, macles et épitaxies, gisements, production et utilisations (2007) éditions CEDIM, Revigny.
Freeman, John J.; Wang, Alian; Kuebler, Karla E.; Jolliff, Bradley L.; Haskin, Larry A. (2008) Characterization of natural feldspars by Raman spectroscopy for future planetary exploration. Canadian Mineralogist, v. 46, pp. 1477-1500.
Fritsch, Emmanuel; Rondeau, Benjamin; Mocquet, Blanca; Lulzac, Yves (2008) Gem news international: 'Red andesine' from China: Possibly indication of diffusion treatment. Gems & Gemology, v. 44, n. 2, pp. 166-167.
Fritz, Eric A.; Laurs, Brendan M. (2007) Gem news international: Cat's-eye K-feldspar and other chatoyant gems from Tanzania. Gems & Gemology, v. 43, n. 2, pp. 170-171.
Gübelin, Eduard J. and John I. Koivula (2004) Photoatlas of Inclusions in Gemstones, [Volume 1]. 4th ed., Opinio Publishers, Basel.
Gübelin, Eduard J. and John I. Koivula (2005) Photoatlas of Inclusions in Gemstones, Volume 2. Opinio Publishers, Basel.
Hänni, Henry A. (2008) Feldspar family. Jewellery News Asia, n. 292, pp. 77-78.
Hänni, Henry A. (2009) Moonstones & Co.: A brief review of the feldspar group. Midlands Focus, n. 15, pp. 3-4, 8.
Henn, Ulrich (2004) Aventurescent plagioclase feldspar from Oregon, USA. Journal of Gemmology, v. 29, n. 2, pp. 72-74.
Henn, Ulrich (2006) "Rainbow-moonstone" from India. Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, v. 55, n. 3/4, pp. 133-136.
Henn, Ulrich (2005) Red transparent andesine from Congo. Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, v. 54, n. 1, pp. 53-55.
Henn, Ulrich; Milisenda, Claudio C.; Hager, Tobias (2005) Chatoyancy and asterism in feldspars from Tanzania. Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, v. 54, n. 1, pp. 43-46.
How simple feldspar becomes a precious stone (2000) Bangkok Gems & Jewellery, v. 14, n. 1, pp. 69-72.
Inns, Alethea; Breeding, Christopher M. (2008) Lab notes: Blue-green plagioclase feldspar, possibly colored by copper. Gems & Gemology, v. 44, n. 2, pp. 160-161.
James, Robert (2008) Grande truffa dell'andesina rossa. Rivista Gemmologica Italiana, v. 3, n. 3, pp. 215-223.
Jang-Green, HyeJin (2009) Gem news international: Transparent labradorite from Ketchikan, Alaska. Gems & Gemology, v. 45, n. 1, p. 67.
Johnston, Christopher L.; Gunter, Mickey E.; Knowles, Charles R. (1991) Sunstone labradorite from the Ponderosa Mine, Oregon. Gems & Gemology, v. 27, n. 4, pp. 220-233.
Jones, Bob (2001) Many varieties of feldspar. Rock & Gem, v. 31, n. 11, pp. 64-66, 68.
Kitawaki, Hiroshi (2003) Natural andesine. Gemmology, Japan, v. 34, n. 401, p. 7.
Koivula, John I. (1987) Gem news: "Rainbow moonstones" are labradorite. Gems & Gemology, v. 23, n. 3, p. 174.
Koivula, John I.; Kammerling, Robert C. (1989) Gem news: A beautiful new form of orthoclase. Gems & Gemology, v. 25, n. 1, p. 47.
Koivula, John I.; Kammerling, Robert C. (1991) Gem news: Sunstone/iolite mixture. Gems & Gemology, v. 27, n. 4, pp. 261-262.
Koivula, John I.; Kammerling, Robert C.; Fritsch, Emmanuel (1992) Gem news: Feldspar-and-amphibole gem from Egypt. Gems & Gemology, v. 28, n. 4, pp. 271-272.
Krzemnicki, Michael S. (2004) Red and green labradorite feldspar from Congo. Journal of Gemmology, v. 29, n. 1, pp. 15-23.
Kyi, U Hla; Thu, U. Kyaw (2004) Pink gem quality orthoclase from the Mogok stone tract, Myanmar. Australian Gemmologist, v. 22, n. 1, pp. 32-34.
Laurs, Brendan M. (2005) Gem news international: Gem plagioclase reportedly from Tibet. Gems & Gemology, v. 41, n. 4, pp. 356-357.
Laurs, Brendan M.; Rossman, George R.; Shigley, James E. (2005) Gem news international: Green orthoclase feldspar from Vietnam. Gems & Gemology, v. 41, n. 4, pp. 354-355.
McClure, Shane F. (2009) Observations on identification of treated feldspar. GIA Website
Milisenda, Claudio C.; Wehr, K. (2009) Green oligoclase from Tanzania. Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, v. 52, n. 3/4, p. 78.
Moine, Chantal (1995) Les feldspaths gemmes: Approche.
Moore, A. (2011) Dust Devil mine: Dig your own Oregon sunstones. Rock & Gem, Vol. 41, No. 6, pp. 20-24.
Mystery of moonstones (2004) Idex Magazine, v. 19, n. 176, pp. 73-74.
Pearson, Grant (2008) Photoessay on Tanzanian star sunstone. Australian Gemmologist, v. 23, n. 7, pp. 311-313.
Quinn, Elizabeth P.; Muhlmeister, Sam M.; Laurs, Brendan M. (2005) Gem news international: Albitic "moonstone" from the Morogoro region, Tanzania. Gems & Gemology, v. 41, n. 1, pp. 60-61.
Robertson, Stuart M. (2007) Andesine feldspar. The Guide; Gem Market News, v. 26, n. 1, p. 10.
Rose, Christopher H. (2004) Rising sunstone. Lapidary Journal, v. 58, n. 3, pp. 28-31.
Roskin, Gary (2003) Jewel of the month: Moonstone (orthoclase feldspar). Jewelers' Circular-Keystone, v. 174, n. 11, pp. 66-68.
Roskin, Gary (2001) Jewel of the month: Sunstone. Jewelers' Circular-Keystone, v. 172, n. 8, pp. 65-66.
Rossman, George R. (2009) Red feldspar project - interim report. GIA Website
Rossman, George R. (2011) Chinese red feldspar controversy: Chronology of research through July 2009. Gems & Gemology, v. 47, n. 1, pp. 16-30.
Rossman, George R. (2010) Pierre de soleil de l'Oregon et feldspath rough de Chine, la controverse. Revue de Gemmologie a.f.g., n. 172, pp. 5-10
Schmetzer, Karl; Bernhardt, Heinz-Jürgen; Gübelin, Edward J. (2003) Rubin und pargasit als einschlüsse in plagioklas. Lapis, n. 6, pp. 44-46.
Skuratowicz, Arthur; Nash, Julie (2005) Feldspar. American Jewelry Manufacturer (AJM), v. 50, n. 3, pp. 65-66.
Smith, Joseph V.; Brown, Wiliam L. (1988) Feldspar minerals: Crystal structures, physical, chemical and microtextural properties. Springer-Verlag, New York.
Sokolov, Maria (2007) Characterization of Pb and selected trace elements in amazonitic K-feldspar.
Thirangoon, Kamolwan (2009) Observation of effects of heating and copper diffusion in feldspar (an on-going research). GIA Website
Thompson, Sharon Elaine (2007) Oregon sunstone. Jewelry Artist, v. 61, n. 6, p. 22.
Webster, Robert (1949) Aventurine: Glass, feldspar, quartz. Gems & Gemology, v. 6, n. 7 , pp. 207-211.
Weldon, Robert (2001) Mystery glitter: An example where the inclusion makes the gem. Professional Jeweler, v. 4, n. 5, p. 50.
White, John S. (2006) The plagioclase feldspars. Rocks & Minerals, v. 81, n. 4, pp. 315-316.
Working with sunstone (2003) American Jewelry Manufacturer (AJM), v. 48, n. 8, p. 18.

PUBLICATIONS

PUBLICATIONS

oregon sunstone PUBLICATIONS

ROBERT JAMES FGA, GG

​