This specimen of
quartz
and sulfides hosts a number of rhombic crystals of rhodochrosite and a few
small crystals of dodecahedral
fluorite.
The largest crystal is 1.9 cm across.
Origin: Nates Pocket, Sweet Home Mine, Alma, Park Co., Colorado, U.S.A.
Sample size: 5.5 x 4.7 x 2.7 cm
Origin: Kassandra Mine, Chalkidiki Prefecture, Greece
Sample size: 4.6 x 2.1 x 1.6 cm
Unusual pseudomorph composed of small (0.1-0.2 cm) rhodochrosite rosettes
after
eudialyte.
Albite
and other associate minerals are also present.
Origin: Poudrette Quarry, Mont St. Hilaire, Quebec, Canada
Sample size: 2.8 x 1.9 x 1.2 cm
This specimen is a large plate of quartz covered with rhombic crystals of
rhodochrosite to 1.8 cm across. There are also dark brown to nearly black
crystals of sphalerite and minute crystals of pyrite.
Origin: Huayllapon Mine, Pasto Bueno district, Pallasca Province, Ancash, Peru
Sample size: 14 x 10 x 3 cm
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