Hi, for my coursework, we're currently analysing sands (oh the joys)
This sand is from Penarth, in Wales ( just in case that helps) and is from a beach. This is what I've got so far, am I right, and is there anything I've missed?
Help identifying minerals (geology) Watch
- Thread Starter
- 04-01-2013 20:51
- 05-01-2013 16:25
Not that I can see. Have you tried doing hardness tests for each of the grains. If you've got a microscope you'll be able to undertake the hardness test, you could also try running a magnet over the sample to test your theory on the darker mineral being magnetite.
I just did some coursework on identifying volcanogenic sulphides and we were using the old hand specimen description scheme that had been drilled in at A-level.
Colour: (speaks for itself)
Lustre: (if its shiny (metallic) dull (vitreous) or resin-like (resounous))
Hardness: scratch with finger nail, Cu Coin, Steel Nail, Glass plate (or piece of quartz)
Streak: What colour does it create when dragged across a ceramic tile
Magnetic: (Yes or no)- if yes most likely magnetite
HCL Reation: (yes or no)- if yes containce CaCo3