Your page concisely explains the concept of Lutetium-hafnium dating with useful charts and images. I also found the figure from Rehman et al (2012) is a bit odd and unclear with the original caption on the image. But then I realized that is not your image uploaded, so you may want to fix it or just leave it.
https://en.wikipedia.org/wiki/Talk:Lutetium%E2%80%93hafnium_dating
There are relatively few technical uses for hafnium and, due to its ability as a nuclear getter or absorber of neutrons, much of the hafnium that is produced is used in control rods for nuclear reactors. Hafnium is also used in iron, titanium, niobium, tantalum, and other alloys.
https://www.americanelements.com/hf.html
Hafnium nanomaterials provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits. Hafnium oxide is available in powder and dense pellet form for such uses as optical coating and thin film applications.
https://www.americanelements.com/hf.html
Lutetium–hafnium dating is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.
https://en.wikipedia.org/wiki/Talk:Lutetium%E2%80%93hafnium_dating
Hafnium is a Block D, Group 4, Period 6 element. The number of electrons in each of Hafnium's shells is 2, 8, 18, 32, 10, 2 and its electronic configuration is [Xe] 4f 14 5d 2 6s 2. The hafnium atom has a radius of 156.4.pm and its Van der Waals radius is 200.pm. In its elemental form, CAS 7440-58-6, hafnium has a steel gray appearance.
https://www.americanelements.com/hf.html
True to Mendeleev’s theory, Hafnium is extremely similar to zirconium; with nearly identical atomic radii, the two always occur together in nature in a continuous solid-solution and are two of the most difficult elements to separate.
https://www.americanelements.com/hf.html
The melting points of several hafnium compounds are unparalleled within their respective groups: hafnium nitride’s (3310 °C) is the highest of any nitride, hafnium carbide’s (3890 °C) is the highest of any known binary compound, and tantalum hafnium carbide’s (4215 °C) is the single highest of any known compound.
https://www.americanelements.com/hf.html
Elayne Gordonov. 1  Elayne Gordonov, Market Manager - Global Bio Market at Instron, talks to AZoM about physical testing requirements of syringes, Luer connections, and needle-based injection systems in-line with ISO 80369 standards for testing medical device connections used in different clinical applications.
https://www.azom.com/article.aspx?ArticleID=1136
In its elemental form, hafnium is a ductile gray metal with a brilliantly lustrous silver sheen. Exposure to air causes the metal to form an impenetrable oxide film on its surface which lends the metal an extremely high resistance to corrosion and attack by most acids and alkalis.
https://www.americanelements.com/hf.html
A fact from Lutetium–hafnium dating appeared on Wikipedia's Main Page in the Did you know? column on 13 December 2017 (check views). The text of the entry was as follows: Did you know ... that the exotic metal lutetium-176 decays to the heavy metal hafnium, so it can be used to date ancient rocks?
https://en.wikipedia.org/wiki/Talk:Lutetium%E2%80%93hafnium_dating
what is unique about hafnium
Hafnium nanomaterials provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.