Darwin Glass is not a mineral but a frothy siliceous pale green to black glass known as impactite, formed from a meteorite collision with siliceous rocks near Mt Darwin, and related to tektites. It is widespread in small amounts on the eastern slopes of Mt Darwin and is most abundant on the eastern slopes of Ten Mile Hill, 20 kms south-south-east of Queenstown. The glass is very irregular, slaggy, with twisted stalactitic forms and with rare teardrop and disc-like shapes. Numerous bubble pits are present and the pieces are consequently of very low density (specific gravity 1.7-2.2) and have a contorted appearance well described by the prospectors term “petrified kelp”. The source crater (astrobleme) is the Darwin Crater, east of Mt Darwin, but no Darwin glass can be found within this weathered structure.
Mineral List
Mineral list contains entries from the region specified including sub-localities
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. 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.
This page is currently not sponsored. To sponsor this page click here.
Mineral and Locality Search
