Goosecreekite, Epistilbite and Heulandite crystals from Jalgaon, India; Gerd Tremmel collection– small cabinet specimen as unique piece
This small cabinet specimen presents a very harmonious combination of Goosecreekite, Epistilbite and Heulandite from Jalgaon, India, originating from the Gerd Tremmel collection. The white to slightly translucent Goosecreekite and Epistilbite crystals form extensive crusts and clearly crystalline coatings on dark basaltic matrix. Intergrown with them are clear to milky Heulandite crystals, locally showing well developed crystal faces and sharp edges. The crystals are clearly recognizable and give the specimen a calm and balanced overall appearance due to their light coloration and varied surface textures.
Geology & Origin
The Jalgaon area is part of the Deccan Traps and is well known for its zeolite rich mineral parageneses formed within cavities of basaltic lava flows. Goosecreekite, Epistilbite and Heulandite crystallize from low temperature hydrothermal solutions that circulated through fractures and gas vesicles after the lava had solidified. The slow precipitation of these minerals resulted in the characteristic well formed crystals and crusts for which Indian zeolite specimens are highly regarded worldwide. The provenance from a renowned collection further enhances the scientific and collector value of this specimen.
This table is for general information and orientation, although the sizes of the stones may vary. In addition, this specification is handled differently from region to region.
Sizes
Description
approx. Sizes in mm/cm
approx. Sizes in INCH
Capsule
Capsule
0.1–0.5 mm in a transparent hard capsule (approx. 1 cm)
capsule contents 0.1–0.5 mm
capsule contents 0.004–0.02 in
TN/mm
Micromount (TN = Thumbnail)
everything fitting in a TN Perky box or a MM box of approx. 1 in
approx. 0.5–2.5 cm
max. 1 in
Min
Miniature specimen
will not fit a TN or MM box anymore
approx. 2.5–5 cm
approx. 0.2–1.0 in
Scab
small cabinet specimen
approx. one-third to half a hand size
approx. 5–9 cm
approx. 1.0–2.0 in
Cab
cabinet specimen
full hand size
approx. 9–15 cm
approx. 2.0–3.5 in
large Cab
large cabinet specimen
approx. two hand sizes
approx. 15–30 cm
approx. 3.5–6.0 in
very large Cab
very large cabinet specimen
everything larger, no upper limit
Abbreviations commonly used in mineralogy.
Abbreviation
Meaning
xl
single crystal, possible with matrix
xls
noticeable crystals
(xl)
embedded or damaged
(xls)
embeddet or damaged
MASS
massive and/or amorphous pieces
TYP
type locality of the original description
SWUV
shortwave-UV-reaction
UV
ultraviolet reaction
SC
self-collected
U
unique (single unique piece)
Usage Instructions
This product is ideal as a collector's item, decorative element, teaching material, or for scientific and exhibition purposes.
Legal Notices
Safety
We accept no liability for damages resulting from improper and/or non-recommended use. Please carefully assess the suitability of the product before any alternative use.
Responsible Provider
Mikon Mineralienkontor GmbH Steinslieth 11 D-37130 Gleichen OT Klein Lengden
