Kalsilite

Vitreous white to grey feldspathoidal mineral

Kalsilite (KAlSiO₄) is a vitreous white to grey feldspathoidal mineral that is found in some potassium-rich lavas, such as from Chamengo Crater in Uganda. It has a relative hardness of 5.5.

References

1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
2. "Kalsilite". mindat.org. Retrieved 2021-12-17.

• Webmineral.com
• Handbook of Mineralogy