Purchase 6, 8, 10, and 12 inch telescope mirror blanks from our stock. We can provide 7, 9, 11, 13, and 14 inch telescope mirror blanks on request. Our regular mirror blanks are made from 3/4 inch thick annealed plate glass - Please read Sky and Telescope's plate glass vs. pyrex to clear up common confusion about using plate glass for telescope mirrors. All of the mirror blanks we sell are individually tested to be free of internal strain.

Discount mirror blank prices for schools, scout groups, telescope making clubs, mirror making camps, etc. Write for volume mirror blank prices

 

 

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Standard telescope mirror blanks for sale:




6 Inch Mirror Blanks, 3/4" Thick: $27.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!


Up to four 6" blanks will ship in one Medium USPS Flat Rate box. Paypal checkout does not provide for combined shipping, so the checkout will add shipping for each extra blank - go ahead and order the blanks you want, and write us for a refund on any extra shipping. Use the above payment button, or you can write us with your desired order and we'll send you a custom Paypal or Google payment invoice. You can also do the math yourself and send an instant email payment using Google Pay or Paypal to our verified email address: mirrorblanks (at) gmail (dot) com (use the @ and . in the usual places when ordering).



8 Inch Mirror Blanks, 3/4" Thick: $37.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!


Up to four 8" blanks will ship in one Medium USPS Flat Rate box. Paypal checkout does not provide for combined shipping, so the checkout will add shipping for each extra blank - go ahead and order the blanks you want, and write us for a refund on any extra shipping. Use the above payment button, or you can write us with your desired order and we'll send you a custom Paypal or Google payment invoice. You can also do the math yourself and send an instant email payment using Google Pay or Paypal to our verified email address: mirrorblanks (at) gmail (dot) com (use the @ and . in the usual places when ordering).



10 Inch Mirror Blanks, 1" Thick (3/4" temporarily out of stock): $69.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!


Up to one 10", 1" diameter blank will ship in one Medium USPS Flat Rate box. Paypal checkout does not provide for combined shipping, so the checkout will add shipping for each extra blank - go ahead and order the blanks you want, and write us for a refund on any extra shipping. Use the above payment button, or you can write us with your desired order and we'll send you a custom Paypal or Google payment invoice. You can also do the math yourself and send an instant email payment using Google Pay or Paypal to our verified email address: mirrorblanks (at) gmail (dot) com (use the @ and . in the usual places when ordering).



12 Inch Mirror Blanks, 3/4" Thick: $59.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!

ONE 12" blank will ship in one USPS Flat Rate box. Use the Payment button, or you can write us with your desired order and we'll send you a custom Google or Paypal invoice. You could also do the math yourself and send an instant email payment using Google or Paypal to our verified email address: mirrorblanks (at) gmail.com (use the @ sign in the usual place when ordering).

*** Note: 12 inches is a rather large diameter for a 3/4" mirror blank. Don't be deterred, just pay attention to the thin mirror making principles on our Thin Mirror Blank Grinding Tips page and elsewhere on the web - lots of great help and encouragement out there from fellow ATM's!



12 Inch Mirror Blanks, 1" Thick (limited supply): $89.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!

ONE inch 12" blanks will NOT fit in USPS Flat Rate boxes, therefore shipping is 25$ to lower 48 United States.



14 Inch Mirror Blanks, 3/4" Thick: $74.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!

14 inch blanks will not fit in any flat-rate USPS boxes... shipping is 30 dollars anywhere in the lower 48 states.

*** Note: 14 inches is a very large diameter for a 3/4" mirror blank. You really need to pay attention to the thin mirror making principles on our Thin Mirror Blank Grinding Tips page and elsewhere on the web



16 Inch Mirror Blanks, 1" Thick (limited supply): $169.95 + Shipping;
Shipping prices in the checkout are to the UNITED STATES ONLY! For foreign orders, please Write Us for a shipping quote before ordering!

ONE inch 12" blanks will NOT fit in USPS Flat Rate boxes, therefore shipping is 25$ to lower 48 United States.

Order By Email:

If you'd like, you may send an instant Paypal or Google payment right to our email address.. simply add the price of the mirror blank(s) you are ordering with the shipping costs based on the number of medium flat-rate USPS boxes required for your order (use the blurbs under the payment buttons above to see how many boxes), then send your payment to our confirmed Paypal email address: mirrorblanks (at) gmail (.) com (use the @ and . in the usual places when ordering - we removed them here to prevent spam). Place mirror blank sizes and quantities you are ordering in the comment / instructions section.

Cosmological Cosmetics:

During manufacture or handling, the surfaces of mirror blanks can acquire some scratches, or slight chipping can occur at the edge - neither of which will have any effect on your finished mirror. Any surface scratches residing on the "business side" of your blank will be ground out in the first grinding session, and edge imperfections will be ground off in beveling sessions. Any blanks deemed to have more than slight cosmetic issues will be placed on our clearance mirror blanks page. All the mirror blanks we sell, regular and clearance, must pass an internal strain test before being shipped, so you are guaranteed a mirror blank which will make a wonderful telescope mirror!