RockVault
Goosecreekite

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 (Zeolite group)

Goosecreekite

CaAl₂Si₆O₁₆·5H₂O

The image displays white to colorless, blocky or tabular crystals of goosecreekite, often intergrown with or forming on a matrix of clear, prismatic quartz crystals.

Goosecreekite Physical Properties

Mohs Hardness

4.5

Crystal System

monoclinic

Luster

vitreous

Streak Color

white

Cleavage

good on {001}

Fracture

uneven to subconchoidal

Specific Gravity

2.26

Colors

white, colorless, pale yellow, pinkish

Transparency

transparent to translucent

Type Locality

Jalgaon District, Maharashtra, India

Mineral Group

Silicates (Zeolite group)

Uses

collector

Associated Minerals

quartz, apophyllite, stilbite, heulandite

Rarity

uncommon

Geological Context

Goosecreekite is a rare zeolite mineral typically found in basaltic vugs and cavities, formed by hydrothermal alteration of volcanic rocks, often alongside other zeolites and secondary minerals.