Grandviewite crystals from the Grandview Mine, Grand Canyon, AZ, USA– miniature specimen as unique piece
Grandviewit crystals from the Grandview Mine, Grand Canyon, Arizona, USA, offered as a miniature specimen and unique piece. Bright turquoise to blue-green Grandviewit areas form striking, contrasting zones on the dark to brownish matrix. The crystalline aggregates are clearly developed and distributed irregularly across the surface, creating a vivid and characteristic appearance of this rare copper mineral. The strong color intensity and texture give the specimen a high aesthetic appeal and make it a classic example of Grandviewit from this well-known locality.
Geology & Origin
The Grandview Mine in the Grand Canyon is a classic locality for secondary copper and uranium minerals formed by oxidative alteration of primary ores. Grandviewit develops under oxidizing near-surface conditions and commonly occurs in association with other copper minerals. The locality is historically significant and continues to yield well-defined, color-rich specimens that illustrate the complex geochemical processes within the deposit.
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
Email: info@mikon-online.com
