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level: Thermal and Electrical properties

Questions and Answers List

Question	Answer
Thermal conductivity is the measure of the ability of a gem material to transfer.. ?	Heat
Diamonds feel cool to the touch due to their ____ thermal conductivity.	High
What is the name of the portable instrument used to distinguish Diamond from it's simulants?	Thermal Conductance probe
The metal tip in a in a thermal conductance probe contains a _______ _______ which when held against the surface of a stone, detects a fall in temperature when in contact with a diamond.	Heating element
What is the only other type of stone that will give the same reading as a dianmond when tested with a thermal conductance probe?	Synthetic moissanite
What type of tester is used to detect synthetic moissanite from diamond?	Electrical conductivity probe
What property does synthetic moissanite posses that diamond generally doesn't, which can be tested to detect the difference?	Electrical conductivity
What is the name of the effect exhibited by tourmaline and quartz, causing them to become electrically charged at opposite ends of the crystal axis when heated?	Pyroelectric effect
What is the name of the effect exhibited by some gem materials such as amber, that causes them to develop a static charge when rubbed?	Triboelectricity