In the intricate world of precious metal analysis, particularly for gold and silver, the fire assay process remains the gold standard for its precision and reliability. The integrity of this process hinges significantly on the quality of its consumables. Substandard cupels or blocks can lead to inconsistent results, increased precious metal loss, and compromised analytical accuracy, directly impacting financial and geological evaluations.
The DECENT Magnesia Bullion Block offers an advanced solution, meticulously crafted from high-purity magnesia.Designed as a porous, multi-holed refractory, it excels in absorbing large quantities of lead oxide during cupellation, cleanly separating base metals to leave behind a pure precious metal prill.With its exceptional mechanical strength, resistance to extreme temperatures, and ability to process numerous samples simultaneously, our Magnesia Bullion Block ensures maximum accuracy and efficiency for all your fire assay requirements.
| Size of Bullion Blocks | No of holes | Length- wise | Width-wise | a (mm) | b (mm) | c (mm) | d (mm) |
| 4 HB | 4 | 2 | 2 | 4 | 4 | 4 | 4 |
| 4 SAHB | 4 | 2 | 2 | 5 | 5 | 6 | 6 |
| 6 HB | 6 | 3 | 2 | 2.5 | 2.5 | 5 | 5 |
| 6 HB(T) | 6 | 3 | 2 | 5.25 | 4 | 5.5 | 4 |
| 10 HB | 10 | 5 | 2 | 5 | 5 | 6 | 4.5 |
| 12 HB | 12 | 4 | 3 | 3 | 3 | 6 | 6 |
| 12 HB(L) | 12 | 6 | 2 | 5.25 | 5.25 | 5.5 | 4.5 |
| 14 HB | 14 | 7 | 2 | 3 | 3 | 2 | 2 |
| 21 HB | 21 | 7 | 3 | 3 | 3 | 2 | 2 |
| 24 HB | 24 | 6 | 4 | 4 | 4 | 4 | 4 |
| 24 HB(L) | 24 | 6 | 4 | 5.5 | 4 | 5.5 | 5.6 |
| Size | No. of Holes | Length of Block | Width of Block | Height of Block | Dia of Cup | Depth of Cup | Height of Ridge | Height of Bevelled Edge from Base | Weight (Approx) | ||
| L | L1 | W | W1 | H | D | H1 | H2 | H3 | g | ||
| 4 HB | 4 | 48 | — | 48 | — | 20 | 18 | 6.5 | — | — | 97 |
| 4 SAHB | 4 | 80 | — | 80 | — | 26 | 30 | 9 | — | — | 321 |
| 6 HB | 6 | 76.5 | — | 51 | — | 20 | 20.5 | 8 | — | — | 150 |
| 6 HB(T) | 6 | 82 | 72 | 60 | 50 | 20 | 22 | 7 | 6 | 14 | 184 |
| 10 HB | 10 | 138 | 128 | 60 | 50 | 20 | 22 | 7 | 6 | 14 | 307 |
| 12 HB | 12 | 80 | — | 60 | — | 20 | 14 | 7 | — | — | 204 |
| 12 HB(L) | 12 | 165 | 155 | 60 | 50 | 20 | 22 | 7 | 6 | 14 | 375 |
| 14 HB | 14 | 179 | — | 54 | — | 20 | 20 | 7.5 | — | — | 367 |
| 21 HB | 21 | 172 | 162 | 76 | 66 | 20 | 22 | 7 | 6 | 14 | 476 |
| 24 HB | 24 | 124 | 114 | 84 | 74 | 20 | 16 | 7 | 6 | 14 | 402 |
| 24 HB(U) | 24 | 165 | — | 120 | — | 20 | 21.5 | 7 | — | — | 830 |
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