Category: Past Events

14 March 2019

March Members’ Monthly Meeting
14 March 2019 (Thursday)
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From Plate Tectonics to Gemstone Formation
Speaker: Ms Trudy Kwong
Language: English

Plate tectonics is a theory that explains the structure of the Earth’s lithosphere and its associated geological phenomena. The relative plate motions create earthquakes, volcanic activities, and mountain belts along the plate boundaries. They are also directly related to the formation of gemstone deposits all over the world.

This talk will discuss the geological origin of common gemstones (jadeite, ruby, sapphire, and diamond), their tectonic settings, distribution, and geological significance.

22 February 2019

Annual General Meeting & Auction Dinner
22 February 2019 (Friday)
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Our AGM and dinner will take place at the Kiangsu, Chekiang and Shanghai Residents’ Association in Central. In addition to the brief AGM agenda and election of the 2019 committee, Daniel Cheung and Leo Tang are planning a splendid dinner and exciting auction. More detail will be available through a MailChimp but as seats are limited to 30 persons do be sure to register for the dinner as soon as possible.

 

 

 

10 January 2019

January Members’ Monthly Meeting
10 January 2019 (Thursday)
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The Classification and Grading of Opal
Speaker: Mr. Eddy Wong
Language: Cantonese

Eddy Wong’s father has been involved in the Australian opal trade since 1979, from buying raw material up to lapidary. Now Eddy has taken charge of the opal polishing and jewellery manufacturing factory and he will share his know ledge and experience with us. He will talk about different opal producing localities around the world, the differences between the localities and the opal grading technique. We hope you will learn more about this extraordinary mineraloid.

14 February 2019

February Members’ Monthly Meeting
14 February 2019 (Thursday)
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A Visit to the Azores Islands
Speaker: Professor Vincent Wong Wai Shing
Language: English

Professor Wong, a regular speaker at our meetings, travels widely and frequently to unusual and beautiful parts of our world. Come along and hear about this autonomous region of Portugal, an archipelago in the mid-Atlantic, a group of relatively young volcanic islands with an interesting history of development.

13 December 2018

December Members’ Monthly Meeting
13 December 2018 (Thursday)
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External & Internal World of Crystal Twinning
Speaker : Dr. Edward Liu Shang I
Language : English/Cantonese

Edward shall be speaking about the fascinating subject of the
feature when two separate crystals share some of the same lattice points in a symmetrical manner resulting in an intergrowth of the two crystals in a variety of specific configurations referred to as ‘twins’.Edward’s talks are always interesting and well attended. He is a highly qualified mineralogist, gemmologist, educator and author of numerous papers related to his field of interest and has been a long serving member of the committee. Be sure to mark the date in your planner.

8 November 2018

November Members’ Monthly Meeting
8 November 2018 (Thursday)
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Mineral Collecting in Cornwall
Speaker : Mr. Jolyon Ralph
Language : English

Jolyon needs very little introduction to our members. As the founder of the fabulous source of information relating to minerals, Mindat.org, Jolyon travels the world extensively adding to his experiences and knowledge. We have been lucky to have him a keen supporter and occasional member of the society since our inception. Jolyon has delivered numerous presentations to our members and guests and he has always done so willingly and happily every visit to Hong Kong that has coincided with our monthly meeting. Come along to learn about collecting in Cornwall where Jolyon recently led a field trip under the Mindat banner.