a direct measuring method for the specific gravity of a gemstone by weighing it first in air, then in water. The specific gravity is obtained by dividing the weight in air by difference between the weights. There are many hydrostatic balances such as Hanneman balance, Westphal balance, Penfield balance, etc.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg New York
About this entry
Cite this entry
(2009). hydrostatic weighing of specific gravity. In: Manutchehr-Danai, M. (eds) Dictionary of Gems and Gemology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72816-0_10975
Download citation
DOI: https://doi.org/10.1007/978-3-540-72816-0_10975
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72795-8
Online ISBN: 978-3-540-72816-0
eBook Packages: Earth and Environmental ScienceReference Module Physical and Materials ScienceReference Module Earth and Environmental Sciences