Why Super Seven Quality Varies So Dramatically
Super Seven is not a single mineral with consistent properties — it's a mineral combination that varies significantly between specimens. The seven minerals (amethyst, clear quartz, smoky quartz, cacoxenite, rutile, goethite, lepidocrocite) are present in different proportions in different pieces, creating enormous variation in appearance and quality.
This variation makes buying Super Seven online particularly challenging: a piece described as "Super Seven" could be a stunning specimen with visible cacoxenite, rutile, and lepidocrocite — or it could be a piece of plain cloudy amethyst with minimal mineral diversity. The price difference between these extremes can be 10x or more.
What to Look for in Product Photography
Natural Light Photos Are Essential
Super Seven's mineral diversity is best revealed in natural daylight photography. Studio lighting can make plain amethyst look similar to genuine Super Seven by washing out the subtle color variations that distinguish the minerals.
Request natural light photos if they're not provided. A seller confident in their Super Seven quality will have no hesitation providing them.
Backlit Photos
Backlighting (light source behind the specimen) reveals internal inclusions and mineral diversity that may not be visible in front-lit photos. Look for sellers who provide backlit photos — this is a sign of transparency about what's inside the stone.
Close-Up Detail Photos
For polished points and towers, request close-up photos of the interior. You should be able to see:
- Golden cacoxenite inclusions (the most important indicator)
- Color variation between purple, grey-brown, and clear zones
- Red-orange lepidocrocite flecks
- Any rutile needles
Multiple Angles
Super Seven's mineral distribution is uneven — a piece may show excellent mineral diversity from one angle and appear as plain amethyst from another. Request photos from multiple angles.
Quality Indicators for Polished Points and Towers
Cacoxenite Visibility
The single most important quality indicator. Visible golden cacoxenite inclusions — even subtle ones — confirm genuine Super Seven and significantly increase value. Ask specifically: "Is cacoxenite visible in this piece?"
Mineral Diversity Score
Count how many of the seven minerals you can identify in the product photos. A high-quality piece should show at least 4–5 distinct mineral components. A piece showing only purple amethyst is low quality regardless of what it's called.
Color Complexity
High-quality Super Seven has a complex, multi-tonal color — purple, grey-brown, golden, and red-orange tones interacting. Low-quality material appears as uniform purple amethyst.
Polish Quality
The polished surface should be smooth and even with good luster. Pits, scratches, or dull patches indicate lower quality polishing. The termination (point) should be sharp and well-formed.
Size and Weight
Larger pieces with good mineral diversity are significantly more valuable than smaller pieces. For polished points, the mineral diversity should be visible throughout the piece, not just at the surface.
Price Benchmarks (2025–2026)
Tumbled Stones
- Low grade (minimal mineral diversity): $3–10 each
- Good grade (visible mineral diversity): $10–25 each
- High grade (cacoxenite visible): $20–50 each
Polished Points and Towers
- Small (5–10cm), low grade: $15–40
- Small (5–10cm), high grade: $40–80
- Medium (10–15cm), low grade: $35–70
- Medium (10–15cm), high grade: $70–150
- Large (15cm+), high grade: $150–400+
Raw Specimens
- Small raw pieces: $20–60
- Large display specimens: $100–500+
Questions to Ask Before Buying
- "Is cacoxenite visible in this piece? Can you point it out in the photos?"
- "Which of the seven minerals are clearly visible?"
- "Is this from Espirito Santo, Brazil?"
- "Can you provide natural light and backlit photos?"
- "What is your return policy if the piece doesn't match the description?"
Shop Super Seven at Brie & Marie
Browse our Super Seven collection — polished points, towers, tumbled stones, and raw specimens from Espirito Santo, Brazil, with mineral diversity confirmed and cacoxenite presence noted on every listing. For the complete guide, see: What is Super Seven Crystal?
