Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
monoclinicuncommonSilicates
Goosecreekite
CaAl₂Si₆O₁₆·5H₂O
Goosecreekite typically forms as radiating aggregates or individual prismatic crystals, often colorless to white, with a vitreous luster.
Goosecreekite Physical Properties
Mohs Hardness
4.5Crystal System
monoclinicLuster
vitreousStreak Color
whiteCleavage
perfect on {001}, good on {100}Fracture
uneven to conchoidalSpecific Gravity
2.2Colors
colorless, white, pale yellowTransparency
transparent to translucentType Locality
Pandulena Hills, Nasik District, Maharashtra, IndiaMineral Group
SilicatesUses
collectorAssociated Minerals
stilbite, heulandite, apophyllite, quartzRarity
uncommonGeological Context
This mineral is a rare zeolite-group mineral found in vugs and amygdales within basaltic rocks, formed through low-temperature hydrothermal alteration.
