3.5" Peach Stilbite Crystals on Chalcedony - India

 
This wonderful specimen contains pink stilbite crystals that formed from a chalcedony encrusted matrix. This crystal cluster was collected from Maharashtra, India. Comes with an acrylic display stand.

Stilbite is probably the most common zeolite found in these deposits. Crystals often form flowery, bowtie or hourglass shaped structures and come in a variety of colors. Some of the most beautiful colorations are the pink or peach tints.

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Chalcedony is any microcrystalline variety of silica composed of very fine intergrowths of quartz and moganite. Microcrystalline meaning the crystals are microscopic and cannot be observed by the naked eye. Both quartz and moganite have the same chemical formula SiO2 (silicon dioxide) but different crystal structures. When free from impurities, chalcedony is colorless and transparent. Dependent on impurities present during formation, chalcedony can form in a wide variety of colors including red, yellow, green, blue, purple, grey, white and numerous color hues in between. Chalcedony is quite hard, being a 7 on the Mohs Hardness Scale, which makes sense considering quartz is the benchmark mineral for a 7.
DETAILS
SPECIES
Stilbite & Quartz var. Chalcedony
LOCATION
Maharashtra, India
SIZE
3.5 x 1.9"
CATEGORY
SUB CATEGORY
ITEM
#135822