Lecture: Gemstones, Fakes and Substitutes
Speaker:
Entry Fee
Members: Free
Visitors: £5.00
Date and Time
19:30 -
Location
Bath Royal Literary and Scientific Institution, 16-18 Queen Square, Bath BA1 2HN
Lecture Description
True gemstones occur naturally as products of geological processes. As such they are infinitely varied in form and colour. Their value depends on their rarity and also, however, on subjective notions of such matters as colour and transparency. The lecture will cover the recognition and identification of gemstones, and their colour-grading.
In recent years improved chemical techniques have made possible the artificial synthesis of many gemstones. There are also a number of more dubious techniques sometimes deliberately intended to deceive the unwary. The lecture will deal with the recognition and identification of gemstone substitutes, technically known as simulants.
Attending via Zoom
This is a hybrid meeting: you can attend in person or join online via Zoom.
Bath Geological Society Members: Free of charge. Joining instructions and the Zoom link are sent to members by email prior to the lecture.
Visitors & Non-Members: (including members of the Geologists' Association and affiliated societies) Please book via Eventbrite to receive Zoom access (see the Entry Fee details above).
How to join: Click the Zoom link provided in your email or Eventbrite confirmation. You can join using the Zoom desktop or mobile app, or directly via your web browser without installing any software. The virtual waiting room opens approximately 15 minutes before the scheduled start time, and attendees will be admitted before the talk commences.
For any queries about joining online, please contact [email protected].