Hematite-included colorless calcite druzy

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Hematite-included colorless calcite druzyLocale: Santa Eulalia, Chihuahua, Mexico Approx dimensions: 4 x 3 x . 75" Approx weight: 101g This calcite specimen from Santa Eulalia is coated with well formed colorless calcite druzy, with fine red tinted hematite inclusions inside. This gives the crystals a brick red tint softened by the glittery clear surface. This specimen is a thin crust of ferrous (iron based) matrix with dusty red oxidation on the back. The front is completely covered in

with phosphorescence apparent

An unknown whitish mineral finely dusts areas of the specimen strongly fluoresces icy blue

Prehnite typically does not fluoresce—but this one does

adding a mustard-yellow coating to the botryoidal growth

I suspect it could be a feldspar pseudomorph

some material can phosphoresce for several minutes

and commonly called Mongolian or Inner Mongolian quartz

Daylight fluorescence means the fluorite reacts to the UV in sunlight

but I suspect it is actually a mixture of several similar-appearing minerals in the iron and manganese oxide families (including goethite

Approx dimensions: 3 x 1

which looks as though a drip of paint landed on the tip

Several specimens—C