GEM KNOWLEDGE · LABORATORY NOTES
Pink Amethyst (Brazil): A Market Name Tested
A Brazilian find introduced in 2020 was marketed across pink, purple, and yellow/peach varieties as “Pink Amethyst.” This report tests a yellow/peach piece from that material.
Tested specimen: 92839 (#9) · Report completed: September 7, 2021.
Key finding: The submitted yellow/peach piece was essentially quartz from a quartz-vein assemblage. The laboratory did not identify this specimen as amethyst.
What this result does and does not show
The report describes earlier opaque quartz that was broken and later invaded by hydrothermal fluids, forming coarser, clearer areas. It does not test every color variant sold under the “Pink Amethyst” label. The pink and purple pieces must be assessed on their own evidence; the yellow/peach result cannot be applied wholesale to them.
Yellow/peach specimen · report 92839
Select a page to enlarge it.
The two images preserve the laboratory's report for this tested piece. The 2020 find and market naming history were supplied by Soul Body Gems.
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)
Read the report as text
This transcription makes the laboratory findings, figure captions, and table values available without opening the page images. Refer to the original images above for visual details.
Laboratory report
Analytical Result Report Sample id: 92839 (#9) Submitted by: K. Bitner Date submitted: Aug.2, 2021. Date completed: Sept. 7, 2021. 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. 6 cm maximum dimension. Fig. 2: Backscattered electron images of the specimen. Fig. 3: Energy dispersive spectral analysis of spot 1 in Fig. 2. (quartz) Table 1: Minor and trace element composition of the specimen. (in wt. %). Iron 0.06 Titanium 0.11 Calcium 0.28 Phosphorus 0.02 Sulfur 0.14 Summary of findings: This specimen (Fig. 1) is cut from a quartz vein assemblage and is composed essentially of quartz (Figs. 2 and 3 and Table 1). Some portions show coarser grain and clearer areas (lower middle to lower right in Fig. 1. The more opaque quartz was earlier and then was brecciated and invaded with more hydrothermal fluids which formed the coarser and clearer quartz. Date: Sept. 7, 2021 Signature