Jacinto de Compostela

Where it forms, where it's found

Geological setting: Marl and gypsum beds.

23recorded occurrences

Source · OpenStreetMap

Physical

Transparency: Translucent · Opaque
Colour: red · orange

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 2 15.999 31.998
53.26%
14SiSilicon Silicon 1 28.085 28.085
46.74%
Total 60.083 100.00%
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	2	15.999	31.998	53.26%
14SiSilicon	Silicon	1	28.085	28.085	46.74%
	Total	60.083	100.00%

Synonyms

Jacinto Quartz

Group, growth & confusion

2 minerals

Literature, links & citation

Citations

2013Gil Marco, J. (2013) Los Jacintos de Compostela del Keuper de la Cuenca Mijares-Palancia: Canales-Andilla (Castellón-Valencia), España. Acopios: 4: 93-347.
2015issuu.com (n.d.) http://issuu.com/malacate/docs/acopios_4-5_pr
2016Calvo, M. (2016) Minerales y Minas de España. Vol VIII. Cuarzo y otros minerales de la sílice. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 399pp. (in Spanish)

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Jacinto de Compostela — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/jacinto-de-compostela-27377},
  note      = {Accessed 2026-05-11}
}