This is pure bluish grey/black elemental silicon. The melting point of this semi-metal/metalloid is 1410 degrees c and it has a density of 2.336.
This sample consists of some larger lumps and smaller bits plus a few powdery grains, each sample will vary though, some you will get mostly small some larger. This element is very hard yet brittle.
This sample is supplied in a small bag and will be posted in an envelope. Please see the photos and note the size of the sample, the the scale in one photo is in mm.
Any questions please feel free to ask. and note the photos are stock photos of my actual stock and your sample may vary slightly.
Note that Silicon is irritating to eyes and skin, always wear gloves and goggles and take care when handling, please store safely away from kids etc. too.
We supply these samples to schools around Australia as an educational sample, please inquire is you need larger quantity's for this, we can help.
Free shipping is for Australian addresses only, we can quote for international shipping on request.