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Will a carnelian stone shine like a flame of fire when a flashlight is directed at it?

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asked Dec 17, 2015 by Bill K (120 points)

2 Answers

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Carnelian is silicon dioxide and is similar to agate, tiger eye, chalcedony and chert in composition. They are all different forms of silicon dioxide. They are all very hard and, in the case of carnelian,  red/ orange hexagonal crystals which can be either translucent all the way to opaque. Another mineral very similar is sard. That is usually darker than carnelian but the two are used interchangeably.
answered Dec 18, 2015 by Weasel (52,070 points)
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Carnelian is translucent and will have a red color when backlit with a flashlight.
answered Dec 28, 2015 by hershel (49,750 points)