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HOLIDAY BLOWOUT SALE, THROUGH NEW YEARS!!! 2 Sale Options:

All Blanks 25% off! or...
Buy 1 blank, get second blank of equal or lesser size for HALF PRICE! Write Us for a custom discount invoice on any item(s) listed below!!! Discount good for up to 10 BLANKS - Please write with your order before ordering, and we'll send you your discounted invoice

Purchase various sizes of telescope mirror blanks from our stock. We provide 4.6inch to 12.6 inch mirror blanks in standard 3/4" thickness, and larger telescope mirror blanks up to 18 inches in 1" thickness. We can also provide 1" thick blanks in any of the 3/4" thick standard diameters below. All of the mirror blanks we sell are individually tested to be free of internal strain.

Order with the payment buttons next to the desired blank - a Paypal account is NOT required.

Standard telescope mirror blanks:

4.6 Inch Mirror Blanks, 3/4" Thick: $19.95 ea + S&H ($9);
Shipping prices are to the UNITED STATES. Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

5.7 Inch Mirror Blanks, 3/4" Thick: $25.95 + S&H (12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

5.9 Inch Mirror Blanks, 3/4" Thick: $31.95 + S&H (12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

6.1 Inch Mirror Blanks, 3/4" Thick: $34.95 + S&H (12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

7.6 Inch Mirror Blanks, 3/4" Thick: $39.95 + S&H (14);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

8.5 Inch Mirror Blanks, 3/4" Thick: $47.95 + S&H (17);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

10.5 Inch Mirror Blanks, 3/4" Thick: $59.95 + S&H (17);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

12.6 Inch Mirror Blanks, 3/4" Thick: $79.95 + S&H (17);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

Cosmological Cosmetics: During manufacture or handling, the surfaces of mirror blanks can acquire some small scratches or slight chipping at the edge, neither of which will have any effect on your mirror because you will be grinding out any scratches and beveling your edges anyway. Blanks deemed to have more than average cosmetic imperfections will be placed on our Discount Mirror Blanks page, saving you even more on your glass mirror blanks and mirror grinding tools. Clearance mirror blanks are tested for internal stresses too - all the blanks we sell will make you a wonderful telescope mirror!

For a complete mirror making KIT, with all abrasives, polishing compounds, pitch, and grinding tool included, please see our Buy Telescope Mirror Kits website for great prices on plate glass telescope mirror making kits.