Explore books, articles and historical sources on ruby, sapphire and corundum in Four Treasures, the Lotus Gemology reference database. This bibliography brings together matching records from the collection, with publication details, abstracts and cover images where available.
Ruby & Sapphire References
The list below matches the terms ruby, rubies, sapphire or corundum in the database's searchable fields. Some references discuss these gems as part of a broader subject. Linked titles take you to external links where you may find the full reference.
4,481–4,500 of 4,678 matching references
Rare and royal rubies
Journal Article
Birmingham, N.T. (1968 (1980?)) Rare and royal rubies.Town and Country, June, p. 168 (pp. 117–119?).
Record No. 7876 | not seen
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corundum, quality.10, gems
A brief popular account devoted to notable rubies associated with royalty and celebrated historical collections. The title suggests discussion of famous stones, their ownership, provenance, and the legends or historical events connected with them.
Geological mapping in the sapphire mines area, Sumjam and in the parts of Bhutna and upper Chenab valleys, Padar area, Doda district, Jammu and Kashmir state
Unpublished Work
Parimoo, M.L. and Raina, B.K. (1968)Geological mapping in the sapphire mines area, Sumjam and in the parts of Bhutna and upper Chenab valleys, Padar area, Doda district, Jammu and Kashmir state. unpublished report.
Record No. 7695 | not seen
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corundum, sapphire, India.12, Kashmir.12, gems
Black star corundum
Journal Article
Peterson, H. (1968) Black star corundum.Rocks & Minerals, Vol. 43, pp. 492–493.
Record No. 1420 | not seen
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corundum, Canada.12, gems
Peterson discusses black star corundum, a dark variety of corundum that displays asterism when cut en cabochon. The article describes the appearance and gemological characteristics of the material and the inclusions responsible for the star effect, produced by oriented needle-like inclusions that reflect light along crystallographically controlled directions. It considers the relationship between the dark body color, inclusions, and visibility of the star, as well as the orientation required in cutting to display the phenomenon effectively. The brief account provides a practical description of black star corundum and the optical phenomenon responsible for its distinctive appearance.
Johnson, V. and Grow, R. (1967) Effects of gamma-irradiation on the characteristics of a ruby laser.IEEE Journal of Quantum Electronics, Vol. 3, No. 1, pp. 1–7.
gems, corundum, color.4, treatments.6, irradiation, x-rays, irradiation paper on ruby
An increase in the absorption cross section responsible for optical pumping of a ruby laser occurs as a result of γ-irradiation. As single crystal ruby is irradiated with Co⁶⁰ γ-rays, the usual absorption bands which exist between 200 and 550 mμ change from four distinct bands to one continuous absorption band. Similar work on sapphire, the host crystal for ruby, indicates that the majority of this increased absorption is experienced by the Cr³⁺ ion in ruby. Thermoluminescence data are presented showing that electron traps with activation energies of about 0.64 and 0.78 eV are formed in ruby as a result of γ-irradiation. These traps remain in the crystal until it is annealed at about 800 °C. It is found that the threshold energy for laser action increases in relation to the amount of irradiation. This effect is also manifested as a decrease in the luminescence of the R₁ line after γ-irradiation. A model has been devised to explain the changes in Cr³⁺ ions due to γ-irradiation and to show how this affects laser action. Theoretical curves are presented indicating how the energy output vs. energy input varies with the amount of γ-irradiation. These data show a definite increase in threshold energy, and at higher pump energies they suggest the possibility of higher efficiencies than possible before irradiation. These theoretical results are supported by experimental data.
Butterman, W.C. and Foster, W.R. (1967) Zircon stability and the ZrO₂–SiO₂ phase diagram.American Mineralogist, Vol. 52, No. 5/6, pp. 880–885.
Record No. 5508 | not seen
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corundum, color.4, gems
The compound ZrSiO₄ makes up 98 percent or more, by weight, of the mineral zircon. In view of the petrological and technological importance of this mineral, accurate information on the thermal stability of ZrSiO₄ is highly desirable. Yet even in the most recent studies there is no general agreement as to the temperature or the manner of breakdown of ZrSiO₄. Table 1 lists the stability data of various investigators.
Konbaungset Maha-ya-zawin-daw-gyi [Chronicle of the Konbaung Dynasty]
Chronicle of the Konbaung Dynasty
Book
Maung Maung Tin, U. (1967)Konbaungset Maha-ya-zawin-daw-gyi [Chronicle of the Konbaung Dynasty]. Rangoon, Laitimantaing Press, 3 Vols.
Record No. 2575 | not seen
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corundum, Burma.12, quality.10, gems
Bancroft’s star sapphire
Journal Article
Petch, H.E. (1967) Bancroft’s star sapphire.Rocks & Minerals, Vol. 42, pp. 563–566.
Record No. 1419 | not seen
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corundum, Canada.12, gems
Report on the geological investigation of Amphoe Wang Chin, Amphoe Bo Kaew, Amphoe Den Chai, Prae Province
Report
Charoenpravat, A. (1967–68)Report on the geological investigation of Amphoe Wang Chin, Amphoe Bo Kaew, Amphoe Den Chai, Prae Province. [in Thai], Dept. of Mineral Resources, Bangkok,
Record No. 498 | ISBN/ISSN: No. 47Q/DB23–24 | not seen
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corundum, Thailand.12, gems
Gem mining in Ceylon
Journal Article
Siedle, L.C. (1966–1967) Gem mining in Ceylon.Australian Gemmologist, Nov., pp. 5–8; February, pp. 10–12.
Record No. 1595 | not seen
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corundum, ruby, sapphire, Sri Lanka.12, gems
Gems of Ceylon
Book
Jayawardena, S.A.S. (1966)Gems of Ceylon. Colombo, Ministry of Finance, Ceylon, 48 pp.
Record No. 1052 | not seen
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corundum, Sri Lanka.12, gems
Mogok: Rubinernes Dal
Mogok: The valley of rubies
Journal Article
Gübelin, E.J. (1966) Mogok: Rubinernes Dal. [Mogok: The valley of rubies]Guldsmedebladet, No. 5, May, pp. 53–56; No. 6, June, pp. 65–69, 74,
Record No. 888 | Language: in German | not seen
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corundum, Burma.12, gems
Topkai Museum with photographs
Book
Çig, K. (1966)Topkai Museum with photographs. Istanbul, Guzel Sanatlar Matabaasi, 64 pp.
Record No. 645 | not seen
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corundum, quality.10, crown jewels, gems
Gems of Ceylon
Book
Anonymous (1966)Gems of Ceylon. Colombo, Ministry of Finance, Ceylon, 48 pp.
Record No. 307 | not seen
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corundum, Sri Lanka.12, gems
Phase Equilibria Among Oxides in Steelmaking
Book
Muan, A. and Osborn, E.F. (1965)Phase Equilibria Among Oxides in Steelmaking. Reading, MA, Addison-Wesley, 236 pp.
Record No. 5620 | JLEL
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corundum, treatments.6, gems
Die Rubin-Lagerstätten von Mogok in Burma
Die Rubin-Lagerstätten von Mogok in Burma
Journal Article
Gübelin, E.J. (1965) Die Rubin-Lagerstätten von Mogok in Burma. [Die Rubin-Lagerstätten von Mogok in Burma]Deutsche Goldschmiede-Zeitung, Spring,
Record No. 2087 | Language: in German | not seen
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corundum, Burma.12, gems
Gemstone mining in Thailand
Journal Article
Ruzic, R.H. (1965) Gemstone mining in Thailand.Australian Gemmologist, December, pp. 5–7.
Record No. 1511 | not seen
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corundum, Thailand.12, gems
The Cowee Valley Ruby Mining Story
Book
Fafard, R. (1965)The Cowee Valley Ruby Mining Story. Franklin, NC, Cowee Gem Shop, 23 pp.
Record No. 734 | Sinkankas/Born No.: 1979 | not seen
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corundum, ruby, USA.12, North Carolina.12, gems
Ceylon History in Stone
Book
Raven-Hart, R. (1964)Ceylon History in Stone. Colombo, Lake House: Assc. Newspapers of Ceylon, x + 320 pp.
Record No. 1465 | not seen
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corundum, Sri Lanka.12, gems
Gemstones
Journal Article
Fernando, L.J.D. (1964) Gemstones.Ceylon Geographer, Vol. 18, pp. 45–48.
Record No. 758 | not seen
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corundum, Sri Lanka.12, gems
Ruby and sapphire
Journal Article
Webster, R. (1963) Ruby and sapphire.Australian Gemmologist, June, p. 5–8; July, p. 10–11; August, p. 7–8,
Ruby and sapphire research spans mineralogy, gem deposits, identification, treatments, synthesis and the history of the gem trade. Older publications can also be useful for tracing terminology, early observations and accounts of mining localities. Publication dates and the original source should be considered when using historical descriptions.
Four Treasures is Lotus Gemology's freely accessible gemological reference database. Use the full database to search by author, title or keyword and explore literature on gemology, mineralogy, jewelry and related fields. Where available, hyperlinks on titles may lead directly to the full publication.