Identify stones

Chigger

Les Hiddins
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At my last camp picked up some stones which were later sucessfully used as flintstones. I am a noob as to identifying minerals, anyone out there with greater knowledge whom would know what type of mineral they are.

The stones were found on the Turon River near Sofala N.SW.

Thanks for your assistance.


RiverStoneRESIZED.jpg
 

Aussie123

Never Alone In The Bush
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Hi,

Very hard to tell from a picture.
My guess would be a sandstone or mudstone which has been been heated (geologically), as evidenced by the white "intrusions" / streaks
Those white intrusions are likely to be quartz (and that would only occur at high pressure and temp)

The heating will tend to "bake" the rock and make it hard, thus more suitable for use as a striker (which you say it is).
 

Chigger

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That is pretty well what I thought it to be, the streaks are thin layers of quartz. The rock has been under immense amount of heat and pressure sometime in the eons of time.

Hope to revisit the campsite soon and will do a search for some more of this rock as it is a reasonable striker.
 
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