GEM KNOWLEDGE · LABORATORY NOTES
Quantum Quattro (Incorrect)
This Peruvian material was offered under the Quantum Quattro name. Testing documents a chrysocolla-rich mixture rather than establishing that trade label as a precise mineral identification.
Finding: The tested specimen is largely chrysocolla with abundant fragmental quartz and feldspars. The report also describes an aluminum silicate that could not be narrowed to one species, plus reddish hematite-dominant fragments with possible goethite, permeated by chrysocolla.
What this report covers
This is sample 92840 (#2), completed February 22, 2022, and is a different specimen from our earlier Peru chrysocolla report. The report presents electron images, elemental spectra, and X-ray maps across six pages. Peru is the supplied source for this piece; the laboratory report does not independently establish its locality.
The laboratory's hypothetical discussion of a Southwestern U.S. setting is an analogy about how such fragments could form, not an origin determination for this specimen.
See also the same specimen under Chrysocolla (Peru).
View the original report
Select any page to enlarge it. 6 pages, in report order.
Understanding the report figures
Use this guide alongside the written findings and the original report transcript. It explains the purpose of each analytical figure and preserves the laboratory’s own figure labels. The interpretations apply to the tested specimen; signals alone do not establish the identity of every similar-looking stone.
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Electron microscope image: This view shows small-scale regions selected for analysis. Its brightness contrast helps distinguish regions with different compositions; it is not a photograph of their natural colors. Numbered spots connect this view to the analyses listed in the report.
Laboratory figure caption: Fig. 2: Backscattered electron images of the specimen.
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Elemental spectrum: The peaks record characteristic X-ray signals from elements in the analyzed spot or area. This is an analysis of that location, not automatically of the entire specimen. Any mineral identification or uncertainty named in the laboratory caption is retained below.
Laboratory figure caption: Fig. 3: Energy dispersive spectral analysis of spot 1 in Fig. 2. (quartz)
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Elemental spectrum: The peaks record characteristic X-ray signals from elements in the analyzed spot or area. This is an analysis of that location, not automatically of the entire specimen. Any mineral identification or uncertainty named in the laboratory caption is retained below.
Laboratory figure caption: Fig. 4: Energy dispersive spectral analysis of spot 2 in Fig. 2. (potassium feldspar)
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Elemental spectrum: The peaks record characteristic X-ray signals from elements in the analyzed spot or area. This is an analysis of that location, not automatically of the entire specimen. Any mineral identification or uncertainty named in the laboratory caption is retained below.
Laboratory figure caption: Fig. 5: Energy dispersive spectral analysis of spot 3 in Fig. 2. (chrysocolla)
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Elemental spectrum: The peaks record characteristic X-ray signals from elements in the analyzed spot or area. This is an analysis of that location, not automatically of the entire specimen. Any mineral identification or uncertainty named in the laboratory caption is retained below.
Laboratory figure caption: Fig. 6: Energy dispersive spectral analysis of spot 4 in Fig. 2. (aluminum silicate species)
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Electron microscope image: This view shows small-scale regions selected for analysis. Its brightness contrast helps distinguish regions with different compositions; it is not a photograph of their natural colors. Numbered spots connect this view to the analyses listed in the report.
Laboratory figure caption: Fig. 7: Backscattered electron images of another area of the specimen.
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Elemental spectrum: The peaks record characteristic X-ray signals from elements in the analyzed spot or area. This is an analysis of that location, not automatically of the entire specimen. Any mineral identification or uncertainty named in the laboratory caption is retained below.
Laboratory figure caption: Fig. 8: Energy dispersive spectral analysis of spot 1 in Fig. 5. (hematite/goethite with chrysocolla)
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Electron microscope image: This view shows small-scale regions selected for analysis. Its brightness contrast helps distinguish regions with different compositions; it is not a photograph of their natural colors. Numbered spots connect this view to the analyses listed in the report.
Laboratory figure caption: Fig. 9: Backscattered electron images of the area shown in Fig. 2. Left: Copper: green, potasium: purple. Right: Silicon: red, aluminum: blue.
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Electron microscope image: This view shows small-scale regions selected for analysis. Its brightness contrast helps distinguish regions with different compositions; it is not a photograph of their natural colors. Numbered spots connect this view to the analyses listed in the report.
Laboratory figure caption: Fig. 10: Backscattered electron image of the area shown in Fig. 7. Copper: green, iron: yellow.
Read the report as text
This text is transcribed from the laboratory report so the findings and figure captions can be read without opening the page images. The images remain available above for visual details.
Laboratory report
Analytical Result Report Sample id: 92840 (#2) Submitted by: K. Bitner Date submitted: Feb. 14, 2022. Date completed: Feb. 22, 2022. Operating conditions: An AMRAY 1830 SEM operated at 25 kV acceleration potential, 26 mm working distance, 15 degrees sample tilt, coated with 250 Å carbon. Using the X-ray fluorescence attachment with 35 kV potential in conjunction with the EDS system. Fig. 1: Photograph of the specimen. 5cm maximum dimension. Fig. 2: Backscattered electron images of the specimen. Fig. 3: Energy dispersive spectral analysis of spot 1 in Fig. 2. (quartz) Fig. 4: Energy dispersive spectral analysis of spot 2 in Fig. 2. (potassium feldspar) Fig. 5: Energy dispersive spectral analysis of spot 3 in Fig. 2. (chrysocolla) Fig. 6: Energy dispersive spectral analysis of spot 4 in Fig. 2. (aluminum silicate species) Fig. 7: Backscattered electron images of another area of the specimen. Fig. 8: Energy dispersive spectral analysis of spot 1 in Fig. 5. (hematite/goethite with chrysocolla) Fig. 9: Backscattered electron images of the area shown in Fig. 2. Left: Copper: green, potasium: purple. Right: Silicon: red, aluminum: blue. Fig. 10: Backscattered electron image of the area shown in Fig. 7. Copper: green, iron: yellow. Table 1: Minor and trace element composition of the specimen. (in wt. %). Aluminum 6.3 Calcium 0.33 Chromium 0.04 Iron 0.8 Magnesium 0.2 Manganese 0.06 Phosphorus 0.02 Sulfur 0.02 Titanium 0.05 Vanadium 0.04 Zinc 0.03 Summary of findings: This specimen (Fig. 1) is Composed largely of chrysocolla (Figs. 2, 6 and 9) with a lot of fragmental quartz (Figs. 2, 3 and 9), feldspars (Figs. 2, 4 and 9), (these may have come from a fragmented rhyolite) an aluminum silicate which may be andalusite, kyanite, or sillimanite but it may also be topaz (Figs. 2, 5 and 9). The reddish pieces are pieces dominantly composed of hematite with possible goethite present (Figs. 7, 8 and 10). They are permeated with chrysocolla. If this material has been mined in the Southwestern US, the admixed fragmental pieces in the chrysocolla could have come from topaz rhyolite. We ran across a situation quite similar to this and published it in 2019 April-May issue of Rocks and Minerals, Vol 94, 185: ‘Surprising find of spessartine from the Finch mine, Hayden area, Gila Co., Arizona by Dallaire, Falster and Simmons. Trace and minor elements are shown in Table 1. Date: February 22, 2022 Signature






