disthene

English

Etymology

Ancient Greek twice + force: compare French disthène. So called in allusion to its unequal hardness in two different directions, or from its positive and negative electric properties.

Noun

disthene (plural disthenes)

1. (mineralogy) Kyanite.

References

• “disthene”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

Further reading

• David Barthelmy (1997–2025), “Disthene”, in Webmineral Mineralogy Database.
• “disthene”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2025.