Titanium-bearing Augite

Where it forms, where it's found

126recorded occurrences

Source · OpenStreetMap

Physical

Colour: Black
Streak: Black

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 6 15.999 95.994
22.63%
13AlAluminium Aluminium 3 26.982 80.946
19.08%
14SiSilicon Silicon 2 28.085 56.170
13.24%
26FeIron Iron 1 55.845 55.845
13.17%
22TiTitanium Titanium 1 47.867 47.867
11.28%
20CaCalcium Calcium 1 40.078 40.078
9.45%
12MgMagnesium Magnesium 1 24.305 24.305
5.73%
11NaSodium Sodium 1 22.990 22.990
5.42%
Total 424.195 100.00%
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
8OOxygen	Oxygen	6	15.999	95.994	22.63%
13AlAluminium	Aluminium	3	26.982	80.946	19.08%
14SiSilicon	Silicon	2	28.085	56.170	13.24%
26FeIron	Iron	1	55.845	55.845	13.17%
22TiTitanium	Titanium	1	47.867	47.867	11.28%
20CaCalcium	Calcium	1	40.078	40.078	9.45%
12MgMagnesium	Magnesium	1	24.305	24.305	5.73%
11NaSodium	Sodium	1	22.990	22.990	5.42%
	Total	424.195	100.00%

Synonyms

Titanaugit
Titanaugita
Titanaugite
Titanian Augite

Group, growth & confusion

1 mineral

KirschsteiniteCaFe²⁺(SiO₄)
Mineral
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Literature, links & citation

Cite this entry

Entry last updated August 11, 2025

@misc{mineral2025,
  author    = {Mineral Index editorial board},
  title     = {Titanium-bearing Augite — Mineral Index},
  year      = {2025},
  url       = {https://mineralindex.org/minerals/titanium-bearing-augite-11105}
}