Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
Labradorite ((Ca, Na)(Al, Si)4O8) is a calcium-enriched feldspar mineral first identified in Labrador, Canada, which can display an iridescent effect (schiller).
Overview, Occurrence & Spectrolite
Explore the main themes, entities and connections around Labradorite. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
spectrolite labradorescence plagioclase effect common al si display white anorthite finland madagascar ylämaa feldspar schiller lamellar crystal iridescent ca na
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Labradorite | 2V angle | Measured: 85° | 1.00 | infobox |
| Labradorite | Birefringence | δ = 0.008–0.010 | 1.00 | infobox |
| Labradorite | Category | Tectosilicate minerals | 1.00 | infobox |
| Labradorite | Cleavage | Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110} | 1.00 | infobox |
| Labradorite | Color | Gray, gray-white, or colorless with blue, pale green, or brown iridescence Spectrolite: may display pink, orange, or purple iridescence | 1.00 | infobox |
| Labradorite | Crystal class | Pinacoidal (1) | 1.00 | infobox |
| Labradorite | Crystal habit | Crystals typically thin and tabular, rhombic in cross section, striated; massive | 1.00 | infobox |
| Labradorite | Crystal system | Triclinic | 1.00 | infobox |
| Labradorite | Diaphaneity | Translucent to transparent | 1.00 | infobox |
| Labradorite | Dispersion | None | 1.00 | infobox |
| Labradorite | Formula | (Ca,Na)(Al,Si)4O8 (Na:Ca = 30:70 to 50:50) | 1.00 | infobox |
| Labradorite | Fracture | Uneven to conchoidal | 1.00 | infobox |
| Labradorite | Group | Feldspar group | 1.00 | infobox |
| Labradorite | IMA status | Variety of anorthite | 1.00 | infobox |
| Labradorite | Luster | Vitreous to pearly on cleavages | 1.00 | infobox |
| Labradorite | Mohs scale hardness | 6–6.5 | 1.00 | infobox |
| Labradorite | Optical properties | Biaxial (+) | 1.00 | infobox |
| Labradorite | Other characteristics | Labradorescence (iridescence, schiller optical effect) | 1.00 | infobox |
| Labradorite | Refractive index | nα = 1.554–1.563 nβ = 1.559–1.568 nγ = 1.562–1.573 | 1.00 | infobox |
| Labradorite | Series | Plagioclase feldspar series | 1.00 | infobox |
| Labradorite | Space group | P1 (no. 2) | 1.00 | infobox |
| Labradorite | Specific gravity | 2.68 to 2.72 | 1.00 | infobox |
| Labradorite | Streak | White | 1.00 | infobox |
| Labradorite | Twinning | Common by albite, pericline, Carlsbad, Baveno, or Manebach twin laws | 1.00 | infobox |
| Labradorite | Unit cell | a = 8.155 Å, b = 12.84 Å c = 10.16 Å; α = 93.5° β = 116.25°, γ = 89.133°; Z = 6 | 1.00 | infobox |
| Labradorite | is a | intermediate to calcic member of the plagioclase series | 0.90 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.