Cavansite on stilbite

Fascinating rock, and cavansite blue.

On the bottom of the cavansite there are two blue “things” maybe not part of?

Super interessant !!!

most beautiful find

Happy new week:)

What a beautiful BLUE colour.

minerals are fascinating, this one very special. My guess, this is Copper(II) sulfate, with the formula CuSO₄. The pure anhydrous substance occurs as a white crystalline powder. However, copper(II) sulfate readily forms blue crystals of the pentahydrate: CuSO₄·5H₂O. Anhydrous copper(II) sulfate occurs in nature in the form of the mineral hydrocyanite. The pentahydrate occurs as the mineral chalcanthite.

According to Wikipedia, the formula is Ca(VO)Si4O10·4(H2O).

"Cavansite, named for its chemical composition of calcium vanadium silicate, is a deep blue hydrous calcium vanadium phyllosilicate mineral, occurring as a secondary mineral in basaltic and andesitic rocks along with a variety of zeolite minerals. Its blue coloring comes from vanadium, a metal ion.[6] Discovered in 1967 in Malheur County, Oregon, cavansite is a relatively rare mineral. It is polymorphic with the even rarer mineral, pentagonite. It is most frequently found in Pune, India, and in the Deccan Traps, a large igneous province."

en.wikipedia.org/wiki/Cavansite

But it sure sounds as if you know your minerals, as minerals containing copper are often blue or green.

Fantastic, the blue is really something!
I have never before seen cavansite and had to read it up:-) You could say it's an intruder but so is the stilbite- both developing hydrothermally in cavities in basalt or tuff. In your photo one can also see the (I presume) basalt.

Das ist ja ein wunderschönes Bild von dieser Steinsammlung liebe Esther :))

Wünsche noch einen schönen Tag,liebe Grüße Güni :))

Gorgeous capture.

Amazing capture!

Admired in: www.ipernity.com/group/tolerance

Très beau cette roche agréable journée.