Non Metallic Lustre

There is a large number of minerals with a non-metallic lustre. I have chosen some of the more common minerals. You may also need to refer to the extra details given in the ID pages to confirm your identification.
If there is a mineral you cannot identify (and I have missed out quite a few), send me as many details as you can and I will endeavour to help you and add it to the ID pages.
Try and include:
colour - hardness - streak - form - cleavage - fracture
Send Details
Start the Non-metals