Herschelite (Chabazite-Na) xls; Horseshoe Dam, AZ, USA; Cab; unique piece
Herschelite crystals from Horseshoe Dam, Arizona, USA – cabinet specimen as a unique piece
The cabinet specimen shows dark grey to brownish-green rock with numerous cavities of varying sizes. Yellowish-beige, finely textured coatings and small pale crystals stand out against the darker matrix. Its irregular, porous surface makes the structure of the specimen clearly visible. Herschelite, the name given on the label, is now known as Chabazite-Na.
Geology & Origin
Horseshoe Dam is located in Maricopa County, Arizona. Zeolites occur in cavities and fractures in altered volcanic rocks in the area. Chabazite-Na forms secondarily from mineral-rich fluids circulating through the rock.
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 cm | Approx. ¼–¾ in |
| Min | Miniature specimen | will not fit a TN or MM box anymore | approx. 2.5-5 cm | Approx. 1–2 in |
| Scab | small cabinet specimen | approx. one-third to half a hand size | approx. 5-9 cm | Approx. 2–3½ in |
| Cab | cabinet specimen | full hand size | approx. 9-15 cm | Approx. 3½–6 in |
| large Cab | large cabinet specimen | approx. two hand sizes | approx. 15-30 cm | Approx. 6–12 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) | embedded 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
Email: info@mikon-online.com
| shipment-weight, NOT netto weight (kg) | 0.050000 |
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