When I lived in Bonsall and a contributor to the Bonsall Map Project and then the Bonsall Village History book, the Cheadle Brass Company got me very intrigued. As Historytrog says there is very limited information about the history of calamine working in Derbyshire but I did discover a small amount of information about the Company in Bonsall, unfortunately my notes are not to hand at present. However, I have looked up for you on my photocopy of the Bonsall Tithe Schedule (1846) and Tithe Map (1848), and found that the Cheadle Calamine Company (as the Cheadle Brass Company was then described) owned land in Bonsall, namely (Tithe Schedule numbers) No.537 [described as a house and garden]; No. 601 [described as Ferry Barn Close]; Nos. 1301, 1302, 1303, 1304, & 1305 [described as Oxen Side Allotments - these fields are out on the Moor and on the line of the Whitelow Rake); Nos. 1146, 1377, 1378, & 1379 [described as "Allotment" pasture - these fields overlook the Via Gellia and are on the south of the lane leading westwards from Slaley to the right angle bend to Bonsall Leys on the Moor). Finally on Puddle Hill (to the west of the lane from the Barley Mow up Puddle Hill) No. 526 is a small piece of land described as "waste" - unoccupied, and No. 532 is described as "calamine works - unoccupied.
Have you lived in Bonsall long? If not, the best person to approach for information is Peter Fellows of the Bonsall History Group, as both the Tithe Schedule and Map have been scanned by the Group and I know that there is in existance a complete map shewing field numbers and field names. Tell him Tim's mum has told you to contact him - he'll know who you mean. Alternatively you can always visit the Derbyshire Record Office at Matlock and view the original Tithe Schedule and Map yourself, but remember it's advisable to phone in advance and book an appointment, also to make a request for the two items so that there is no delay or disappointment.
If you browse the internet you can find quite a bit of information about the history of the Cheadle Brass Company, but nothing on Bonsall. I would guess that a visit to the Stafford Record Office could reveal a lot of information about the company.
Regarding the water colour earlier referred to about the Mill, from memory I think Lyn Willies (of Peak District Mines Historical Society) bought it. I have seen a copy of it.
There are seventeen Barmaster's books recording the lead mines of the Bonsall mining liberty, but again they will only mention lead, no other mineral that was found as a gangue material in the vein when the lead was mined. They can be consulted at Chatsworth House where the Barmote Court Records were deposited a few years ago for safe keeping. However, a fee is charged.
The works seem to be mainly in the 18th century, and some references to the Company were included in John Robey and Lindsey Porter's articles on copper mining in the earlier Peak District Mines Historical Society's Bulletins. The index to all articles can be found on the PDMHS website.
Trust this helps to pinpoint the location of the calamine works in Bonsall.