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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
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Description
Annealing Cups for Laboratory, Assay & High Temperature Sample PreparationAnnealing Cups Made of the finest selected fire clay, these cups are smooth and have an unglazed surface. Used for annealing gold buttons and for ignition of precipitates such as barium sulfate, copper sulfide, and silica. annealing cups for assay lab ceramic annealing cups high temperature sample cup metallurgy annealing cup lab heating cup ceramic assay sample prep cups Used for: laboratory metal analysis combustion elemental analysis assay testing
Annealing Cups
Made of the finest selected fire clay, these cups are smooth and have an unglazed surface. Used for annealing gold buttons and for ignition of precipitates such as barium sulfate, copper sulfide, and silica.
- annealing cups for assay lab
- ceramic annealing cups
- high temperature sample cup
- metallurgy annealing cup
- lab heating cup ceramic
- assay sample prep cups
Used for:
- laboratory metal analysis
- combustion / elemental analysis
- assay testing
- sample heating prep
- thermal treatment workflows
- precious metal / mining labs
- industrial QA labs
***These are made at time of order and have a longer lead time***
Colorado Assay Crucibles – Multi-Run
Made of a high quality, premium mix, these assay crucibles are made to be a multi-run crucible when used in a standard assay process. They are also suggested for use with harsh flux.
Specifications
| Part No. | Size | Height | Top Outer Diameter | Qty/Pk |
| C64020000 | 0 | 1.25 inches | 1.125 inch | 12 |
| C64020002 | 1 | 1.125 inches | 1.375 inch | 12 |
| C64020004 | 2 | 1.75 inches | 1.625 inch | 12 |
| C50021504 | 15 Gram | 3.8 inches | 2.88 inches | 64 |
| C50021508 | 30 Gram | 4.4 inches | 3.5 inches | 64 |
| C50021512 | 40 Gram | 5.25 inches | 3.5 inches | 48 |
| C50021520-NS | 50 Gram | 6.25 inches | 3.6 inches | 48 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 3
Quality Assurance Lacking
Color: White, Size: 15.7 Inches
The first set I ordered was great; super easy to install, no issues. The second set I ordered the holes on the bottom of the shelves did not match up with the holes on the bar that secures the shelves to the wall so it was impossible to attach the shelves correctly. I'm still trying to figure out a solution.
TO SUMMARIZE: First set perfect; second set unusable
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Beautiful shelves!
Size: 48 Inch, Color: Natural, Size: 48 Inch, Color: Natural
Since new build homes typically don't come with towel rods this was what I envisioned instead. I purchased the hooks separately. The shelves are perfect! I ordered a 36in set as you see with the cream towels and a 48in set that you see with the green towels. They're not loose but not 100% sturdy. I recommend maybe gluing to the wall in addition to the rest and definitely screwing into a stud. They're easy enough to figure out without the instructions. But I will say they're supposed to be screwed in underneath to the rods but they did not come with an appropriate screw for that so I had to use some I already had on hand.
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Reviewed in the United States on May 20, 2025
★★★★★ 5
Nice
Size: 30 Inch, Color: Natural, Size: 30 Inch, Color: Natural
Easy to install..comes with small magnetic leveler which made things even easier! Really nice for the price.
Only thing is other than sliding the wood onto the metal brace, there’s only 2 screws that screw wood onto brace so it makes for a slightly wobbly shelf on the brace… although I have 6 screws/anchors holding each brace into the wall so it’s technically quite solid…I’m a bit nervous to keep delicates on the shelves
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Reviewed in the United States on February 16, 2025
★★★★★ 5
Great Shelves! Drywall Anchors are the Bomb!
These shelves are very plain as I hoped they would be so as to not take away from the items displayed. The blue is true to the images so I was impressed by that. Word of knowledge: if you do not hit any studs, don’t use the mollies that came with them; use plastic drywall anchors! They work amazingly well!
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Reviewed in the United States on May 27, 2026
★★★★★ 4
Pretty shelves for small space
Size: 17 Inch, Color: Natural
Good quality shelves and easy to install once I used my own stronger anchors and screws. The ones provided were too weak and made the shelf unstable. I had to patch several holes in my wall before installing them correctly. If they had provided better quality anchors I would have rated it 5 stars. Still very happy with my purchase.
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Reviewed in the United States on July 12, 2025
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