Sanidine xls; Garnet Hill, Ely, NV, USA; Cab; unique piece
Sanidine crystals from Garnet Hill, Ely, NV, USA – cabinet specimen as unique piece
This cabinet specimen features Sanidine crystals from Garnet Hill near Ely, Nevada, USA. The specimen consists of light colored volcanic matrix with several small cavities containing grayish white to slightly transparent Sanidine crystals. The crystals are embedded within pockets of the rhyolitic matrix and display a delicate vitreous luster. Especially attractive is the contrast between the porous light brown host rock and the clearer crystalline areas. The crystals are small but clearly recognizable.
Geology & origin
Garnet Hill near Ely in Nevada is a well known volcanic locality famous mainly for its garnets, but it also produces various feldspar minerals. Sanidine is a potassium rich high temperature feldspar typically formed in volcanic rocks such as rhyolites. The crystals develop during the slow cooling of silica rich magmas and commonly occur in gas cavities and pockets within volcanic rocks. The locality is considered one of the classic American collecting areas for volcanic minerals.
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) | 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) | 0.500000 |
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