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03 · Material aperture

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Codex entry · ready Material records · 4 series
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№ 06 · The Flow

Rose Quartz

Common massive rose quartz contains microscopic aligned silicate-mineral fibres associated with its pink colour and cloudy translucence.

7Mohs
Varies by depositReference geological time
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BE.Geological Codex™
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material records. One readable index.

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Records

  1. № 01 · The Anchor

    Gold Sheen Obsidian

    Composition
    Silica-rich volcanic glass
    Mohs
    5 to 5.5
    Formation
    Silica-rich volcanic glass; its gold sheen is an angle-dependent internal reflection.
    Age
    No single age applies at stone-type level; age belongs to a specific lava flow.
    Image
    BE. Studio geological reference visual.

    01 · Confirmed geology. Gold Sheen Obsidian is silica-rich volcanic glass whose oriented internal structures reflect light to produce an angle-dependent gold sheen. Dense obsidian can cool slowly enough for residual bubbles to resorb while remaining fast relative to crystal nucleation.

    02 · BE. selection. A continuous dark body and restrained angle-dependent sheen; never surface glitter.

    03 · Geological Reading. One way to read this: volcanologists read obsidian as melt that cooled faster than most crystals could form. It set as glass in one event, and in studied Mexican sheen obsidian the golden flash comes from small structures lined up along the direction the melt was flowing when it stopped. It set in one go, and that last movement is still in it.

    Sources. Nature Communications 2026 · GIA 2025 review

    Open Stone Record → All gold sheen obsidian pieces →

  2. № 02 · The Void

    Amethyst

    Composition
    SiO₂
    Mohs
    7
    Formation or deposit
    Purple macrocrystalline quartz whose colour is held by iron-related centres activated through irradiation. No single age applies at stone-type level; age belongs to a specific deposit.
    Image
    Stone-type reference

    01 · Geological facts. Amethyst is purple quartz (SiO₂) whose iron-related colour centres absorb visible light after activation by irradiation.

    02 · BE. selection. Dimensional violet, readable zoning and translucency, strand continuity and surface integrity.

    03 · Geological Reading. The iron was there first.

    Open Stone Record → All amethyst pieces →

  3. № 03 · The Prism

    Citrine

    Composition
    SiO₂
    Mohs
    7
    Formation or deposit
    Yellow-to-brownish-orange macrocrystalline quartz with iron-related colour; natural-colour and heat-produced yellow appearances both exist. No single age applies at stone-type level; age belongs to a specific deposit.
    Image
    Stone-type reference

    01 · Geological facts. Citrine is yellow to brownish-orange quartz (SiO₂), and its colour can develop through geological processes or heat treatment. Appearance alone cannot show whether yellow formed geologically or after extraction.

    02 · BE. selection. Luminous yellow field, readable transparency, strand continuity and surface integrity.

    03 · Geological Reading. The colour is in the stone all the time. Light only shows it.

    Open Stone Record → All citrine pieces →

  4. № 04 · The Flow

    Prehnite

    Composition
    Ca₂Al₂Si₃O₁₀(OH)₂
    Mohs
    6 to 6.5
    Formation or deposit
    A calcium aluminium silicate hydroxide found in low-temperature alteration and low-grade metamorphic settings, often occupying veins, fractures, vesicles and cavities. No single age applies at stone-type level; age belongs to a specific host and alteration or metamorphic event.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Prehnite is a calcium aluminium silicate hydroxide that forms during low-temperature alteration or low-grade metamorphism and can fill rock cavities.

    02 · BE. selection. Translucent body, visible internal structure and no waxy visual closure.

    03 · Geological Reading. The change left room, and a new mineral grew in it.

    Open Stone Record → All prehnite pieces →

  5. № 05 · The Anchor

    Smoky Quartz

    Composition
    SiO₂
    Mohs
    7
    Formation or deposit
    Brown-to-grey macrocrystalline quartz whose smoky appearance comes from irradiation-related colour centres in the crystal. No single age applies at stone-type level; age belongs to a specific deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Smoky Quartz is quartz (SiO₂) whose brown to grey colour develops when irradiation creates colour centres associated with aluminium in its crystal structure.

    02 · BE. selection. Smoky depth with remaining translucency and tonal continuity.

    03 · Geological Reading. Hold it up and light still comes through the dark.

    Open Stone Record → All smoky quartz pieces →

  6. № 06 · The Flow

    Rose Quartz

    Composition
    SiO₂
    Mohs
    7
    Formation or deposit
    Common massive rose quartz contains microscopic aligned silicate-mineral fibres associated with its pink colour and cloudy translucence. No single age applies at stone-type level; age belongs to a specific deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Common massive Rose Quartz is quartz (SiO₂) whose microscopic silicate-mineral fibres contribute to its pink colour and cloudy translucence.

    02 · BE. selection. Pink remains distributed through a translucent body with readable internal depth and no flat surface-colour effect.

    03 · Geological Reading. The colour is soft. The stone under it is quartz, hardness 7.

    Open Stone Record → All rose quartz pieces →

  7. № 07 · The Flow

    Clear Quartz

    Composition
    SiO₂
    Mohs
    7
    Formation or deposit
    Colourless macrocrystalline quartz whose ordered structure can transmit visible light without a dominant colour-producing absorption. No single age applies at stone-type level; age belongs to a specific deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Clear Quartz is colourless crystalline silica (SiO₂) that can contain fluid or mineral inclusions within its transparent to translucent body.

    02 · BE. selection. Transparency and internal structure remain legible together; clarity is not treated as chemical emptiness.

    03 · Geological Reading. It has nothing added.

    Open Stone Record → All clear quartz pieces →

  8. № 08 · The Prism

    Hematoid Quartz

    Composition
    SiO₂ quartz host + iron-rich inclusion phase(s); exact identity specimen-dependent
    Mohs
    7
    Formation or deposit
    Quartz holding iron-rich colour and inclusions inside a clear host; exact phases vary by specimen. No single age applies at stone-type level; age belongs to a specific quartz occurrence and its inclusion event.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Hematoid Quartz is quartz (SiO₂) containing iron-rich inclusions whose mineral composition varies between specimens.

    02 · BE. selection. Readable iron distribution, retained quartz depth and disclosed variation.

    03 · Geological Reading. The red is strong, and it has a direction.

    Open Stone Record → All hematoid quartz pieces →

  9. № 09 · The Flow

    Emerald Phantom Quartz

    Composition
    SiO₂ quartz host + fuchsite inclusions
    Mohs
    7 for quartz host; about 2 to 3 for fuchsite
    Formation or deposit
    Quartz with green fuchsite along an earlier growth surface; Emerald Phantom Quartz is the retained commercial name. No single age applies at stone-type level; age belongs to a documented occurrence and its growth events.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Emerald Phantom Quartz is the commercial name used here for quartz (SiO₂) with green phantom inclusions; in BE.'s material the green mineral is fuchsite, a chromium-bearing variety of muscovite.

    02 · BE. selection. A clear host, visible green fuchsite, coherent phantom-plane geometry and enough matched usable material.

    03 · Geological Reading. The earlier crystal is still inside the later one, the same shape, and you can see it.

    Open Stone Record → All emerald phantom pieces →

  10. № 10 · The Prism

    Green Phantom Quartz

    Composition
    SiO₂ + inclusions
    Mohs
    7
    Formation or deposit
    An internal green growth boundary held inside later quartz. Relative growth order may be visible; no absolute age belongs to the stone type without a documented deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Green Phantom Quartz is quartz (SiO₂) whose green inclusions mark earlier crystal growth surfaces enclosed by later quartz.

    02 · BE. selection. Internal structure must read in depth and remain distinct from surface staining.

    03 · Geological Reading. You can count the stages. You cannot tell how long any of them took.

    Open Stone Record → All green phantom pieces →

  11. № 11 · The Flow

    Aquamarine

    Composition
    Be₃Al₂Si₆O₁₈
    Mohs
    7.5 to 8
    Formation or deposit
    Iron-related blue to green-blue beryl that can remain transparent. No single age applies at stone-type level; age belongs to a specific deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Aquamarine is blue to green-blue beryl (Be₃Al₂Si₆O₁₈) whose colour comes from iron-related absorption within the crystal.

    02 · BE. selection. A readable colour field, transmitted light, coherent matching and evidence kept separate from appearance.

    03 · Geological Reading. The colour is definite, and the stone stays transparent.

    Open Stone Record → All aquamarine pieces →

  12. № 12 · The Flow

    Moonstone

    Composition
    Feldspar · exact species/intergrowth specimen-dependent
    Mohs
    6 to 6.5
    Formation or deposit
    In classic moonstone, cooling separates intergrown feldspars into fine alternating layers that scatter light. No single age applies at stone-type level; age belongs to a specific host and deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Classic Moonstone consists of intergrown orthoclase and albite feldspars whose fine internal layers scatter light to produce adularescence.

    02 · BE. selection. A mobile inner light, readable depth, coherent body and surface/build integrity.

    03 · Geological Reading. It takes time, and more than one angle, to see what is in it.

    Open Stone Record → All moonstone pieces →

  13. № 13 · The Prism

    Golden Rutilated Quartz

    Composition
    SiO₂ host + TiO₂ rutile when confirmed
    Mohs
    7
    Formation or deposit
    Quartz encloses or intergrows with golden rutile while both minerals remain distinct. No single age applies at subtype level; age belongs to a specific deposit.
    Image status
    BE. Studio geological reference visual; full credit appears in the Stone Record

    01 · Geological facts. Golden Rutilated Quartz contains golden rutile crystals (TiO₂) enclosed in a quartz host (SiO₂), with the two minerals retaining distinct structures.

    02 · BE. selection. Keep the quartz body open around spatially legible lines; confirm inclusion identity separately.

    03 · Geological Reading. It is valued as one stone, and it holds two minerals at once.

    Open Stone Record → All golden rutilated quartz pieces →

  14. № 14 · The Prism

    Green Rutilated Quartz

    Composition
    SiO₂ quartz host + actinolite-family needle inclusions
    Mohs
    7
    Formation or deposit
    Green Rutilated Quartz is the retained commercial name for quartz with actinolite-family needle inclusions. No single age applies at subtype level; age depends on the confirmed inclusion, host and deposit.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Green Rutilated Quartz is the commercial name used here for quartz (SiO₂) with actinolite-family amphibole needles identified in the source records.

    02 · BE. selection. Publish visible structure and tested mineral identity as separate facts.

    03 · Geological Reading. A gemmologist identifies the needles by their chemistry, which was fixed when they grew. They were actinolite before anyone called them rutile, and they are actinolite now.

    Open Stone Record → All green rutilated quartz pieces →

  15. № 15 · The Void

    Blue Smoky Quartz

    Composition
    SiO₂ quartz; blue from Tyndall scattering
    Mohs
    7 for the quartz framework
    Formation or deposit
    Clear quartz holding a blue haze of scattered light, with fine blue needles that can show inside it. Age not assigned; a locality comes from the record of each strand.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Blue Smoky Quartz is quartz (SiO₂) whose blue comes from the Tyndall effect: particles far too small to see scatter the blue part of light back toward the eye. Fine blue needles can show inside the crystal alongside the haze.

    02 · BE. selection. The blue haze reads evenly across the strand, and the quartz around it stays clear. Colour and internal features stay readable, without severe clouding, surface residue or mismatched beads. Fractures, cavities, drill edges and chips are checked bead by bead, along with any sign of filling or stabilisation.

    03 · Geological Reading. What went into the colour stayed in the stone, and no one piece of it stands out.

    Open Stone Record → All blue smoky quartz pieces →

  16. № 16 · The Void

    Super Seven Quartz

    Composition
    SiO₂ quartz host + specimen-dependent zones and inclusions
    Mohs
    7 for the quartz framework
    Formation or deposit
    Included, colour-zoned quartz recorded as a sequence of growth events. Locality and age vary by deposit; no single age applies to the trade name.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Super Seven Quartz is a commercial name for quartz (SiO₂) that can preserve colour zones and solid or fluid inclusions from its growth history. A fixed seven-mineral composition is not assigned at stone-type level.

    02 · BE. selection. Colourless, smoky or amethystine areas are read as a coherent spatial record where present; none is required merely to satisfy the commercial name. Included features remain visually legible without being assigned a mineral identity from colour or habit alone. Fractures, cavities, drill edges, chips and possible filling or stabilisation are reviewed. No specimen is described as containing seven components unless a product-specific analytical record identifies the claimed phases and counting method.

    03 · Geological Reading. Zones of smoky and violet colour sit in the same crystal, and threads and flecks of other minerals grew into it as it formed. A gemmologist lists each of them separately, because each is its own mineral or its own colour centre. Take one of them away and it would be a different stone.

    Open Stone Record → All super seven pieces →

  17. № 17 · The Void

    Kyanite

    Composition
    Al₂SiO₅
    Mohs
    5.5 parallel to [001]; 7 parallel to [100]
    Formation or deposit
    A triclinic Al₂SiO₅ polymorph whose hardness changes with crystallographic direction and whose bladed structure carries pronounced cleavage. No single age applies at stone-type level; age belongs to a specific host rock and metamorphic event.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Kyanite is a triclinic aluminium silicate (Al₂SiO₅) that occurs in metamorphic rocks and has hardness that varies with crystallographic direction.

    02 · BE. selection. Blade, grain, colour distribution or internal structure should remain visually legible without treating every line as damage. Edges, drill paths, surface-reaching separations and mounting pressure require close inspection because hardness alone does not describe resistance to splitting. Hue and light transmission should form an intentional sequence; blue is common but is not by itself proof of species, locality or treatment. Size, origin, treatment, construction and durability guidance belong to the verified product record.

    03 · Geological Reading. The crystal is soft one way and hard the other, and it holds together as a single piece.

    Open Stone Record → All kyanite pieces →

  18. № 18 · The Anchor

    Almandine Garnet

    Composition
    Fe²⁺₃Al₂(SiO₄)₃ ideal end member; natural solid solution varies
    Mohs
    7 to 7.5
    Formation or deposit
    An isometric iron(II)-aluminium garnet with ideal formula Fe²⁺₃Al₂(SiO₄)₃, widespread in metamorphic rocks and also present in some igneous and sedimentary settings. No single age applies at stone-type level; age belongs to a specific host and growth event.
    Image status
    Stone-type reference; full credit appears in the Stone Record

    01 · Geological facts. Almandine Garnet is an iron-aluminium garnet with ideal composition Fe₃Al₂(SiO₄)₃ that commonly forms in metamorphic rocks and crystallises in the cubic system.

    02 · BE. selection. Deep red or brown-red appearance alone is insufficient for an almandine claim; product-level identity requires adequate supplier, analytical or gemological evidence. Where translucency is part of the design, light should reveal internal depth. Hue, transparency, size and visual weight should form an intentional progression; natural variation is disclosed. Polish, pits, fractures, drill edges and inclusions are reviewed at object level without treating every natural feature as a defect or proof of origin.

    03 · Geological Reading. The garnet is made of the conditions it grew in.

    Open Stone Record → All almandine garnet pieces →

  19. № 21 · Mineral record

    Dumortierite

    Mineral
    Dumortierite, an aluminium borosilicate
    Ideal formula
    Al₇BSi₃O₁₈ (dumortierite); SiO₂ (quartz)
    Crystal system and hardness
    Orthorhombic, Mohs 7 to 8.5 for dumortierite; trigonal, Mohs 7 for quartz

    Mineral illustration: dumortierite needles enclosed in quartz.

    Open this record →

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Text Index Stone Finder

01 · Geological facts

02 · BE. selection standard

03 · Geological Reading

Reference imagery shows the mineral type. Each BE. lot is described in its Stone Origin Record.
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01

Anchor

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02

Flow

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03

Prism

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04

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