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PME S75-20649 Hyalite Opal

by Andy Randell | Jan 21, 2018

Hyalite Opal Form of opal that forms from out-gassing volcanic vent Massive hyalite (a colourless form of opal) occurs as globular masses. Hyalite forms in...

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Important Disclaimer: This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

Map Location Accuracy: The coordinates listed for many locations are general regional coordinates (not accurate) and should not be relied upon for locating localities (eg with a GPS).