Henry A. Hänni

563 total citations
51 papers, 454 citations indexed

About

Henry A. Hänni is a scholar working on Geochemistry and Petrology, Archeology and Geophysics. According to data from OpenAlex, Henry A. Hänni has authored 51 papers receiving a total of 454 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Geochemistry and Petrology, 10 papers in Archeology and 7 papers in Geophysics. Recurrent topics in Henry A. Hänni's work include Mineralogy and Gemology Studies (28 papers), Geological and Geochemical Analysis (7 papers) and Cultural Heritage Materials Analysis (6 papers). Henry A. Hänni is often cited by papers focused on Mineralogy and Gemology Studies (28 papers), Geological and Geochemical Analysis (7 papers) and Cultural Heritage Materials Analysis (6 papers). Henry A. Hänni collaborates with scholars based in Switzerland, United States and Germany. Henry A. Hänni's co-authors include Michael S. Krzemnicki, Lore Kiefert, Karl Schmetzer, W. Gutmannsbauer, Heinz-Jürgen Bernhardt, W. B. Stern, Laurent E. Cartier, Sebastian D. Friess, Stéfanos Karampelas and Éric Reusser and has published in prestigious journals such as PLoS ONE, Mineralogical Magazine and Milk science international/Milchwissenschaft.

In The Last Decade

Henry A. Hänni

47 papers receiving 279 citations

Peers

Henry A. Hänni

GP

GEOPH

ARCHE

AS

BIOMA

Lore Kiefert Switzerland

B. Rondeau France

Stéfanos Karampelas France

Shane F. McClure United States

Lucyna Natkaniec‐Nowak Poland

Magdalena Dumańska‐Słowik Poland

C. Aurisicchio Italy

György Szakmány Hungary

Éloïse Gaillou France

John I. Koivula United States

Lore Kiefert Switzerland

Henry A. Hänni

258 ×1.0

GP

153 ×0.9

GEOPH

132 ×0.9

ARCHE

60 ×1.4

AS

26 ×0.7

BIOMA

Citations per year, relative to Henry A. Hänni Henry A. Hänni (= 1×) peers Lore Kiefert

Countries citing papers authored by Henry A. Hänni

Since Specialization

Citations

This map shows the geographic impact of Henry A. Hänni's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Henry A. Hänni with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Henry A. Hänni more than expected).

Fields of papers citing papers by Henry A. Hänni

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Henry A. Hänni. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Henry A. Hänni. The network helps show where Henry A. Hänni may publish in the future.

Co-authorship network of co-authors of Henry A. Hänni

This figure shows the co-authorship network connecting the top 25 collaborators of Henry A. Hänni. A scholar is included among the top collaborators of Henry A. Hänni based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Henry A. Hänni. Henry A. Hänni is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

1.

Meyer, Joana Beatrice, Laurent E. Cartier, Eric Pinto‐Figueroa, et al.. (2013). DNA Fingerprinting of Pearls to Determine Their Origins. PLoS ONE. 8(10). e75606–e75606. 19 indexed citations

2.

Hänni, Henry A. & Laurent E. Cartier. (2013). Tracing cultured pearls from farm to consumer: A review of potential methods and solutions. Journal of gemmology/The journal of gemmology. 33(7). 239–245. 5 indexed citations

3.

Schmetzer, Karl, Michael S. Krzemnicki, Henry A. Hänni, Heinz-Jürgen Bernhardt, & Thomas Pettke. (2007). Gem-quality taaffeites and musgravites from Africa. Journal of gemmology/The journal of gemmology. 30(7). 367–382. 5 indexed citations

4.

Kunz, M., et al.. (2005). Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar. A combined \nneutron- and X-ray single crystal diffraction study. eScholarship (California Digital Library). 1 indexed citations

5.

Hänni, Henry A., et al.. (2004). Pearls from the lion's paw scallop. Journal of gemmology/The journal of gemmology. 29(4). 193–203. 4 indexed citations

6.

Smith, Christopher P., et al.. (2003). Poudretteite: A Rare Gem Species from the Mogok Valley. Gems & Gemology. 39(1). 24–31. 2 indexed citations

7.

Hänni, Henry A. & Michael S. Krzemnicki. (2003). Caesium-rich morganite from Afghanistan and Madagascar. Journal of gemmology/The journal of gemmology. 28(7). 417–429. 11 indexed citations

8.

Hänni, Henry A., et al.. (2002). Eine neue Diffusionsbehandlung liefert orangefarbene und gelbe Saphire. Bern Open Repository and Information System (University of Bern). 6 indexed citations

9.

Hänni, Henry A., et al.. (2001). A glass imitation of blue chalcedony. Journal of gemmology/The journal of gemmology. 27(5). 275–285.

10.

Kiefert, Lore & Henry A. Hänni. (2000). Gem-Quality Haüyne from the Eifel District, Germany. Gems & Gemology. 36(3). 246–253. 3 indexed citations

11.

Hänni, Henry A., et al.. (2000). Identification of GE POL diamonds: a second step. Journal of gemmology/The journal of gemmology. 27(2). 73–78. 16 indexed citations

12.

Koivula, John I., et al.. (1995). Gem News. Gems & Gemology. 31(3). 204–216. 2 indexed citations

13.

Hänni, Henry A.. (1983). The Influence of the Internal Structure of Pearls on Lauegrams. The Journal of Gemmology. 18(5). 386–400. 4 indexed citations

14.

Hänni, Henry A., et al.. (1982). Ferroaxinite—Another New Gem from Sri Lanka. The Journal of Gemmology. 18(1). 20–27. 1 indexed citations

15.

Stern, W. B. & Henry A. Hänni. (1982). Energy Dispersive X-Ray Spectrometry: A Non-Destructive Tool in Gemmology. The Journal of Gemmology. 18(4). 285–296. 16 indexed citations

16.

Hänni, Henry A., et al.. (1981). Golden Yellow Tourmaline of Gem Quality from Kenya. The Journal of Gemmology. 17(7). 437–442. 3 indexed citations

17.

Hänni, Henry A., et al.. (1980). Comparison of some methods of estimating free fatty acids in milk and milk products.. 71(4). 509–525. 2 indexed citations

18.

Hänni, Henry A. & William F. Ritter. (1964). Gas chromatography and its application in dairy science. 4. Studies of fat.. Milk science international/Milchwissenschaft. 19. 1–8. 1 indexed citations

19.

Ritter, William F. & Henry A. Hänni. (1960). The application of gas chromato-graphy in dairying. II. Detection and determination of volatile fatty acids in dairy products and cultures.. Milk science international/Milchwissenschaft. 15(6). 296–302. 10 indexed citations

20.

Ritter, William F. & Henry A. Hänni. (1960). [Formation of volatile fatty acids from amino acids by Micrococci].. PubMed. 23(5). 669–80. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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