| NN | Card | Specie | Formula | Space Group |
|---|---|---|---|---|
| 1. | 2821 | [1], t-melilite, Na | (Ca,Na)2AlSi2O7 | P 4(-)2(1)m |
| 2. | 2822 | [2], t-melilite, analogue | Y2SiBe2O7 | P 4(-)2(1)m |
| 3. | 2823 | [3], t-melilite, analogue | Sr2MnSi2O7 | P 4(-)2(1)m |
| 4. | 2824 | [4], t-melilite, Sr | [Ca0.84Sr0.45Na0.71][Mg0.19Al0.46Fe3+0.25]Si2O7 | P 4(-)2(1)m |
| 5. | 2825 | [5], t-melilite, Sr | [Ca0.83Sr0.45Na0.72][Mg0.20Al0.45Fe3+0.24]Si2O7 | P 4(-)2(1)m |
| 6. | 6582 | [6], t-melilite, analogue | [Ca0.87Sr0.13]2CoSi2O7 | P 4(-)2(1)m |
| 7. | 6710 | [7], t-melilite, Fe, syn | [Ca1.53Na0.47][Mg0.52Fe3+0.49]Si2O7 | P 4(-)2(1)m |