25
Gold Sheen Obsidian Bracelet: What Causes the Sheen & How to Choose
Why gold sheen obsidian glows — nano-inclusions of magnetite create a directional flash. Covers sheen types, grading criteria, and bracelet care.
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Journal
Field notes for understanding materials, comparing stones, choosing size, and caring for what you wear.
Published records
50 records
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26
Blue Needle Quartz: Dumortierite Inclusions & What Makes It Rare
Blue needle quartz explained — dumortierite inclusions, colour science, global sources, and strand evaluation. A mineralogical guide to quartz’s rarest colour variety.
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27
Black Rutilated Quartz: Inclusions, Origins & How to Read a Strand
Black rutilated quartz explained — tourmaline vs rutile needles, origin fingerprints, 5-point strand reading guide, and trade-name decoder.
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28
Why Is Amethyst Associated With Calm? A Material & Cultural Reading
Amethyst's calm association traces to violet colour psychology, Roman and ecclesiastical heritage, and modern wellness aesthetics. Not mineral chemistry.
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29
Are Crystals Radioactive? Science, Risk & Safe Stones
A science-first answer to whether crystals are radioactive — which minerals contain uranium or thorium, measured emission levels, and which stones are safe to wear.
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30
Do Crystals Affect the Human Body? An Honest Scientific Answer
An honest scientific assessment of whether crystals affect the human body — the placebo evidence, the physical-property evidence, and what we actually know.
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31
Crystals Are Not Magic — They Are Geology
A science-first reframe of crystals as geology — how they form, what they actually do, and why the mineralogy is more interesting than the metaphysics.
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32
The Geology of Patience: How Long Crystals Take to Form
How long crystals actually take to form — million-year timescales for quartz, decades for opal, and what time tells you about a mineral.
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33
Hematoid Quartz Guide: Iron Oxide Inclusions & Jewellery
A geology-first guide to hematoid quartz — quartz with iron oxide inclusions, why colours range from rust to dusky red, top deposits and how to read a strand.
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34
Emerald Phantom Quartz: Rare Green Inclusions & Origins
A geology-first guide to emerald phantom quartz — what makes the green colour rare, how the chlorite ghosts form, and how to read a strand.
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35
Rose Quartz Guide: Colour Origin, Varieties & Jewellery
A geology-first guide to rose quartz — what gives quartz its pink colour, why some pieces show asterism, where the best material forms, and how to read a...
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36
Prehnite: The Pale Green Stone Few Sellers Grade Well
A geology-first guide to prehnite — calcium-aluminium silicate formation, why some pieces show epidote needles, top deposits and how to read a strand.
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