Stone Explorer → Super Seven comparison tool
Super Seven is a trade name for quartz with colour zones and inclusions. Compare two natural quartz reference specimens, then follow one pegmatite pathway.
In our shop: all Super Seven pieces
File 16 · Two natural quartz reference records
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Each specimen opens its own file.
Evidence
These two catalogue specimens are quartz references for colour and inclusions. Neither catalogue identifies its specimen as Super Seven.
What does the name mean?
Super Seven describes a commercial category of quartz with zones and inclusions. Amethyst, smoky quartz and colourless quartz share the same mineral identity.
These two catalogue specimens are quartz references for colour and inclusions. Neither catalogue identifies its specimen as Super Seven.
Colour or inclusion?
Violet and smoky colour can occupy zones within quartz. A separate mineral trapped in quartz is an inclusion. Compare the violet body colour with the reddish material in the second record.
Inclusion identity comes from the specimen record and suitable analysis; shape and colour alone are insufficient.
One studied occurrence
At Mattedi I in Santa Teresa, Brazil, a study recorded amethyst, smoky and colourless zones, hematite aggregates and later fracture fillings in quartz sold as super seven.
This is a deposit-specific example. The two photographs have their own locality records.
What does seven count?
The traditional list mixes quartz colour varieties with separate mineral names. The trade name supplies no fixed mineral count for an individual stone.
A photograph records appearance. Treatment history and exact composition require specimen-specific evidence.
Sources and image credits
Mineral references explain the host. The Santa Teresa study supplies one geological case. Photo catalogues identify the separate reference specimens.
Quartz host: SiO₂, trigonal symmetry and Mohs 7. These properties apply to the quartz host.
Open sourceMattedi I: altered pegmatite, quartz colour zones, hematite aggregates, fluid inclusions and multiple fracture generations. Formation follows this bounded example.
Open sourceQuartz identity and relationships among its colour varieties.
Open sourceRed inclusions in quartz have often been mislabelled lepidocrocite. The records here retain the catalogue identity without extending it to other stones.
Open sourceRob Lavinsky, iRocks.com · Proportionally resized and compressed. Colours unchanged. Derivatives: CC BY-SA 3.0. Locality and mineral names follow the catalogue; no treatment claim.
Open sourceCC BY-SA 3.0Rob Lavinsky, iRocks.com · Proportionally resized and compressed. Colours unchanged. Derivatives: CC BY-SA 3.0. Locality and mineral names follow the catalogue; no treatment claim.
Open sourceCC BY-SA 3.0A composite visual of violet and smoky quartz zones with inclusions. It does not document a particular specimen, locality or mineral analysis. The two comparison photographs retain their own catalogue identities.
A conceptual pegmatite pathway informed by the Mattedi I study. No scale or measured field section; no history assigned to the reference photographs.
Purple amethyst, smoky and colourless zones can occur in the same quartz crystal. They remain one mineral species. Needles, bundles, plates, dots and clouds describe inclusion shapes; reflections along fractures can add further visible features. Each observation needs a separate mineral identification before it becomes a composition claim.
Open sourceMagalhães and colleagues studied quartz from Mattedi I, Santa Teresa, Espírito Santo. They described purple, smoky and colourless zones and syngenetic hematite aggregates. Fluid-bearing healed fractures and later oxide-filled fractures record other events. This result concerns the studied material; it does not establish seven minerals in every stone sold as Super Seven or the origin of a BE. strand.
Open sourceThe familiar seven-name list combines quartz, amethyst and smoky quartz with rutile, goethite, lepidocrocite and cacoxenite. The first three are the same mineral species. A red plate or a golden needle is insufficient to identify the remaining minerals. Pre-existing inclusions, simultaneous growth and later fracture fillings require different geological explanations.
Open source
