# Delindeite

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**Delindeite** is a very rare [titanium](/source/Titanium) [sorosilicate](/source/Sorosilicate) mineral in the lamprophyllite [group](/source/Mineral_group) and seidozerite supergroup. It was named in honor of [Henry Samuel de Linde](/source/Henry_Samuel_de_Linde), an amateur [mineralogist](/source/Mineralogist) who was the former owner of the [Diamond Jo quarry](/source/Diamond_Jo_quarry), [Arkansas](/source/Arkansas), where the mineral was first discovered in 1987.[2] It is a secondary mineral formed under [oxidizing](/source/Oxidizing) conditions from a titanium-bearing [nepheline](/source/Nepheline) and [syenite](/source/Syenite).[3]

Delindeite is also part of a rare group of minerals called [titanosilicates](/source/Titanosilicate). With only around 30 known species discovered as of 2025, they are quite diverse. Delindeite specifically is a [barium](/source/Barium) titanosilicate.[4]

Other than Diamond Jo quarry, delindeite has also been found at the [California State Gem Mine](/source/California_State_Gem_Mine) in [San Benito County](/source/San_Benito_County), California.[1]

## References

1. ["Delindeite"](https://www.mindat.org/min-1252.html). *www.mindat.org*. 14 December 2025. Retrieved 14 December 2025.

1. Appleman, Daniel E.; Evans, Howard T.; Nord, Gordon L.; Dwornik, Edward J.; Milton, Charles (September 1987). ["Delindeite titanosilicates and lourenswalsite, two new from the Magnet Cove region, Arkansas"](https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/delindeite-titanosilicates-and-lourenswalsite-two-new-from-the-magnet-cove-region-arkansas/28E00D4DCA45C7F23FC11B3C190B65E5). *Mineralogical Magazine*. **51** (361): 417–425. [doi:10.1180/minmag.1987.051.361.08](https://doi.org/10.1180/minmag.1987.051.361.08). Retrieved 14 December 2025.

1. ["Delindeite Mineral Data"](https://webmineral.com/data/Delindeite.shtml). *webmineral.com*. 14 December 2025. Retrieved 14 December 2025.

1. Ferraris, G.; Ivaldi, G.; Pushcharovsky, D. Yu.; Zubkova, N. V.; Pekov, I. V. (1 October 2001). ["The Crystal Structure of Delindeite, Ba2{(Na,K)3(Ti,Fe)\[Ti2(O,OH)4Si4O14\](H2O,OH)2}, A Member of the Mero-Plesiotype Bafertisite Series"](https://www.researchgate.net/publication/237438244). *The Canadian Mineralogist*. **39** (5): 1307–1316. [doi:10.2113/gscanmin.39.5.1307](https://doi.org/10.2113/gscanmin.39.5.1307). Retrieved 14 December 2025.

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Adapted from the Wikipedia article [Delindeite](https://en.wikipedia.org/wiki/Delindeite) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Delindeite?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.