Titan-uranoan Oxycalciopyrochlore

Where it forms, where it's found

2recorded occurrences

Source · OpenStreetMap

Radioactivity

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
92UUranium Uranium 2 238.029 476.058
34.63%
73TaTantalum Tantalum 2 180.948 361.896
26.33%
41NbNiobium Niobium 2 92.906 185.812
13.52%
8OOxygen Oxygen 8 15.999 127.992
9.31%
22TiTitanium Titanium 2 47.867 95.734
6.96%
20CaCalcium Calcium 2 40.078 80.156
5.83%
11NaSodium Sodium 2 22.990 45.980
3.35%
1HHydrogen Hydrogen 1 1.008 1.008
0.07%
Total 1374.636 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
92UUranium	Uranium	2	238.029	476.058	34.63%
73TaTantalum	Tantalum	2	180.948	361.896	26.33%
41NbNiobium	Niobium	2	92.906	185.812	13.52%
8OOxygen	Oxygen	8	15.999	127.992	9.31%
22TiTitanium	Titanium	2	47.867	95.734	6.96%
20CaCalcium	Calcium	2	40.078	80.156	5.83%
11NaSodium	Sodium	2	22.990	45.980	3.35%
1HHydrogen	Hydrogen	1	1.008	1.008	0.07%
	Total	1374.636	100.00%

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Titan-uranoan Oxycalciopyrochlore — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/titan-uranoan-oxycalciopyrochlore-40372},
  note      = {Accessed 2026-05-11}
}